Percentages reflect change in titles from previous count.
Highlighted percentages are over 200% or under -50%.
2001 | 1997 | 1993 | LC / NLM Classification Range |
|---|---|---|---|
| 46,193 24% | 37,140 6% | 34,915 | A-AZ |
| 14,048 110% | 6,677 5% | 6,335 | AC Collections |
| 1,092 4% | 1,052 13% | 932 | AE Encyclopedias |
| 518 8% | 479 6% | 451 | AG General Reference Works |
| 379 5% | 360 3% | 349 | AI Indexes |
| 1,451 10% | 1,321 11% | 1,194 | AM Museums, Collectors & Collecting |
| 535 -11% | 600 -19% | 741 | AN Newspapers (if used by campus) |
| 4,707 4% | 4,544 13% | 4,005 | AP Periodicals |
| 22,358 6% | 21,072 6% | 19,939 | AS Societies, Academies |
| 561 3% | 544 3% | 526 | AY Yearbooks, Almanacs, Directories |
| 497 12% | 443 10% | 402 | AZ History of the Sciences in General, Scholarship, Learning |
| 47 -2% | 48 17% | 41 | any other A-AZ |
| 220,878 13% | 194,863 14% | 170,589 | B-BZ |
| 3,394 5% | 3,242 6% | 3,050 | B 1-68 Philosophy: Periodicals, Societies, Congresses |
| 14,573 11% | 13,181 10% | 11,947 | B 69-789 Philosophy: History and Systems, Ancient through Renaissance |
| 20,290 11% | 18,237 10% | 16,607 | B 790-5739 Philosophy: History and Systems, Post Renaissance |
| 66 8% | 61 20% | 51 | any other B |
| 2,097 8% | 1,948 7% | 1,813 | BC Logic |
| 5,426 11% | 4,910 11% | 4,429 | BD Speculative Philosophy |
| 21,520 9% | 19,797 10% | 18,006 | BF 1-1000 Psychology |
| 1,641 6% | 1,549 7% | 1,450 | BF 1001-1400 Parapsychology |
| 2,349 14% | 2,055 12% | 1,839 | BF 1401-1999 Occult Sciences |
| 39 22% | 32 7% | 30 | any other BF |
| 1,810 10% | 1,647 10% | 1,491 | BH Aesthetics |
| 6,261 12% | 5,610 12% | 5,024 | BJ 1-1800 Ethics |
| 349 9% | 321 9% | 294 | BJ 1801-2195 Social Usages, Etiquette |
| 3 0% | 3 50% | 2 | any other BJ |
| 26,365 14% | 23,102 15% | 20,107 | BL Religions, Mythology, Rationalism |
| 7,561 14% | 6,630 20% | 5,507 | BM Judaism |
| 21,664 30% | 16,723 32% | 12,650 | BP Islam, Bahaism, Theosophy |
| 10,991 21% | 9,054 32% | 6,856 | BQ Buddhism |
| 14,000 12% | 12,469 12% | 11,099 | BR Christianity (General) |
| 14,356 13% | 12,740 14% | 11,137 | BS Bible |
| 7,819 11% | 7,056 13% | 6,252 | BT Doctrinal Theology |
| 8,658 9% | 7,963 10% | 7,267 | BV Practical Theology |
| 2,296 11% | 2,063 21% | 1,709 | BX 1-799 Eastern Christian Churches |
| 17,188 15% | 14,895 14% | 13,070 | BX 800-4795 Roman Catholic Church |
| 10,112 6% | 9,541 7% | 8,879 | BX 4800-9999 Protestantism |
| 19 6% | 18 50% | 12 | any other BX |
| 2 - | 0 -100% | 1 | any other BL-BX |
| 29 81% | 16 60% | 10 | any other B-BZ |
| 26,126 11% | 23,622 1% | 23,324 | C-CZ |
| 23 -4% | 24 -4% | 25 | C Auxiliary Sciences of History: General |
| 4,081 12% | 3,645 10% | 3,306 | CB History of Civilization and Culture |
| 2,844 24% | 2,293 18% | 1,942 | CC Archaeology (General) |
| 4,849 6% | 4,591 19% | 3,852 | CD Diplomatics, Archives, Seals |
| 520 10% | 474 14% | 417 | CE Chronology |
| 2,445 6% | 2,314 8% | 2,140 | CJ Numismatics |
| 803 15% | 699 16% | 602 | CN Epigraphy |
| 1,314 10% | 1,195 11% | 1,076 | CR Heraldry |
| 3,550 11% | 3,204 -29% | 4,501 | CS Geneology |
| 5,655 10% | 5,140 10% | 4,690 | CT Biography |
| 42 -2% | 43 -94% | 773 | any other C-CZ |
| 385,085 12% | 344,022 13% | 304,642 | D-DZ |
| 41,154 9% | 37,856 8% | 34,906 | D 1-899 History (General) |
| 1,890 13% | 1,670 13% | 1,472 | D 900-2009 History of Europe, General |
| 77 5% | 73 -8% | 79 | any other D |
| 26,198 7% | 24,456 7% | 22,866 | DA History: Great Britain |
| 44 100% | 22 633% | 3 | DAW 1001-1051 History: Central Europe |
| 7,627 6% | 7,196 10% | 6,570 | DB History: Austria, Austro-Hungarian Empire, Hungary |
| 24,237 11% | 21,834 9% | 20,033 | DC History: France |
| 19,506 9% | 17,958 8% | 16,556 | DD History: Germany |
| 1,592 9% | 1,463 8% | 1,358 | DE History: Mediterranean Region, Greco-Roman World |
| 4,766 11% | 4,311 9% | 3,948 | DF History: Greece |
| 13,818 19% | 11,621 11% | 10,428 | DG History: Italy |
| 1,472 5% | 1,403 3% | 1,366 | DH History: Netherlands (Low Countries, General & Belgium) |
| 3,026 130% | 1,317 4% | 1,271 | DJ History: Netherlands (Holland) |
| 689 23% | 561 42% | 394 | DJK History: Eastern Europe |
| 26,541 9% | 24,279 18% | 20,644 | DK History: Russia, U.S.S.R. |
| 2,129 8% | 1,978 7% | 1,843 | DL History: Northern Europe, Scandinavia |
| 8,034 18% | 6,799 13% | 6,031 | DP 1-500 History: Spain |
| 1,043 5% | 990 5% | 939 | DP 501-900 History: Portugal |
| 4 -33% | 6 20% | 5 | any other DP |
| 978 7% | 912 6% | 861 | DQ History: Switzerland |
| 13,143 15% | 11,467 14% | 10,063 | DR History: Eastern Europe, Balkan Peninsula |
| 5,239 15% | 4,563 20% | 3,802 | DS 1-40 History: Asia |
| 32,349 16% | 27,944 20% | 23,334 | DS 41-329 History: Southwestern Asia, Ancient Orient, Near East |
| 26,647 13% | 23,621 20% | 19,718 | DS 330-500 History: Southern Asia, Indian Ocean |
| 96,829 12% | 86,301 15% | 74,940 | DS 501-937 History: Eastern Asia, Southeastern Asia, Far East |
| 97 1% | 96 25% | 77 | any other DS |
| 2,234 10% | 2,030 - | - | DT 1-39 History: Africa (General) |
| 0 - | 0 - | - | DT 43-159.9 History: Egypt and Sudan |
| 318 7% | 297 - | - | DT 160-177 History: North Africa |
| 4 0% | 4 - | - | DT 179.2-179.9 History: Northwest Africa |
| 3,962 13% | 3,515 - | - | DT 181-346 History: Maghrib, Barbary States |
| 465 8% | 431 - | - | DT 348-363.3 History: Central Sub-Saharan Africa |
| 2,044 11% | 1,834 - | - | DT 365-469 History: Eastern Africa |
| 3,090 9% | 2,826 - | - | DT 470-671 History: West Africa |
| 550 49% | 369 - | - | DT 1001-3415 History: Southern Africa |
| 8,410 9% | 7,713 - | - | any other DT |
| 4,580 13% | 4,071 11% | 3,659 | DU History: Oceania (South Seas) |
| 264 17% | 226 11% | 203 | DX History: Gypsies |
| 35 289% | 9 80% | 5 | any other D-DZ |
| 49,176 8% | 45,400 8% | 41,954 | E-EZ |
| 11,478 12% | 10,266 10% | 9,348 | E 1-139 History of Americas: General, Indians, North America |
| 18,664 8% | 17,320 8% | 16,104 | E 140-200 United States, Colonial, Special Topics |
| 1,863 4% | 1,800 5% | 1,721 | E 201-299 United States, Revolutionary Period |
| 3,221 3% | 3,137 4% | 3,023 | E 301-440 United States, 1790-1855 |
| 5,983 8% | 5,547 7% | 5,164 | E 441-655 United States, Slavery and Civil War |
| 7,044 8% | 6,513 10% | 5,902 | E 656-875 United States since the Civil War |
| 371 10% | 338 18% | 286 | E 876-884 United States since 1981 |
| 552 15% | 479 18% | 406 | any other E-EZ |
| 52,201 12% | 46,687 11% | 42,223 | F-FZ |
| 7,014 5% | 6,683 5% | 6,383 | F 1-205 State & Local History: New England, Atlantic Coast |
| 5,427 8% | 5,028 11% | 4,524 | F 206-475 State & Local History: South, Gulf States |
| 5,385 6% | 5,076 9% | 4,655 | F 476-705 State & Local History: Midwest, Mississippi Valley |
| 2,017 9% | 1,854 13% | 1,642 | F 721-854 State & Local History: The West |
| 2,248 9% | 2,055 10% | 1,864 | F 856-975 State & Local History: Pacific Coast, Alaska |
| 4,991 7% | 4,681 9% | 4,288 | F 1000-1170 History: British America, Canada |
| 4,982 21% | 4,129 12% | 3,701 | F 1201-1392 History: Mexico |
| 2,723 12% | 2,442 11% | 2,205 | F 1401-1419 History: Latin America, Spanish America (General) |
| 2,531 18% | 2,151 17% | 1,839 | F 1421-1577 History: Central America |
| 3,249 19% | 2,730 17% | 2,334 | F 1601-2151 History: West Indies |
| 270 17% | 231 9% | 211 | F 2155-2191 History: Caribbean Area |
| 11,173 18% | 9,440 11% | 8,468 | F 2201-3799 History: South America |
| 0 -100% | 1 - | 0 | FC History: Canada |
| 191 3% | 186 71% | 109 | any other F-FZ |
| 96,396 18% | 81,526 24% | 65,503 | G-GZ |
| 11,855 11% | 10,706 10% | 9,718 | G 1-922 Geography (General) |
| 2,694 21% | 2,229 18% | 1,889 | G 1001-3122 Atlases |
| 28,006 21% | 23,150 70% | 13,647 | G 3160-9980 Maps |
| 2,931 1,072% | 250 4% | 241 | any other G |
| 167 3% | 162 -1% | 163 | GA 1-87 Mathematical Geography |
| 2,695 8% | 2,505 3% | 2,422 | GA 100-1999 Cartography |
| 30 -9% | 33 0% | 33 | any other GA |
| 1,087 3% | 1,053 4% | 1,014 | GB 1-399 Physical Geography (General) |
| 1,158 8% | 1,072 11% | 968 | GB 400-650 Geomorphology, Landforms, Terrain |
| 2,053 14% | 1,808 12% | 1,608 | GB 651-5030 Hydrology, Water, Natural Disasters |
| 2,222 7% | 2,073 10% | 1,880 | GC Oceanography |
| 1,034 155% | 406 - | - | GE Environmental Science (General) |
| 1,628 16% | 1,399 22% | 1,144 | GF Anthropogeography |
| 4,597 8% | 4,266 8% | 3,956 | GN 1-296 Anthropology |
| 6,600 15% | 5,758 17% | 4,912 | GN 301-686 Ethnology and Ethnography |
| 3,644 10% | 3,323 11% | 2,983 | GN 700-890 Prehistoric Archaeology |
| 60 -8% | 65 25% | 52 | any other GN |
| 8,852 10% | 8,037 12% | 7,173 | GR Folklore |
| 4,347 20% | 3,611 20% | 3,009 | GT Manners and Customs (General) |
| 1,354 11% | 1,223 10% | 1,108 | GV 1-200 Recreation |
| 1,348 7% | 1,259 2% | 1,233 | GV 201-555 Physical Training |
| 4,318 14% | 3,782 14% | 3,317 | GV 557-1198 Sports |
| 1,087 6% | 1,022 7% | 957 | GV 1199-1570 Games and Amusements |
| 2,386 13% | 2,105 13% | 1,859 | GV 1580-1799 Dancing |
| 190 7% | 178 13% | 157 | GV 1800-1860 Circuses, Carnivals |
| 21 0% | 21 11% | 19 | any other GV |
| 32 7% | 30 -27% | 41 | any other G-GZ |
| 394,130 12% | 351,457 14% | 309,281 | H-HZ |
| 10,000 6% | 9,438 1% | 9,322 | H The Social Sciences in General |
| 8,289 9% | 7,583 12% | 6,784 | HA Statistics |
| 21,742 10% | 19,838 11% | 17,927 | HB Economic Theory |
| 55,697 13% | 49,114 14% | 42,911 | HC Economic History & Conditions: National Production |
| 10,509 10% | 9,533 15% | 8,260 | HD 1-100 Economics: Production |
| 7,542 8% | 6,981 10% | 6,361 | HD 101-1395 Economics: Land |
| 10,229 10% | 9,271 13% | 8,228 | HD 1401-2210 Agricultural Economics |
| 8,722 13% | 7,740 17% | 6,604 | HD 2321-4730 Economics: Industry |
| 38,229 11% | 34,509 14% | 30,292 | HD 4801-8942 Labor |
| 19,549 9% | 17,966 11% | 16,167 | HD 9000-9999 Special Industries and Trades |
| 185 -3% | 191 -4% | 198 | any other HD |
| 18,202 6% | 17,128 8% | 15,933 | HE Transportation and Communication |
| 3,306 5% | 3,161 6% | 2,973 | HF 1-1186 Commerce |
| 9,876 11% | 8,869 14% | 7,784 | HF 1401-4050 Commercial Policy |
| 2,253 8% | 2,081 10% | 1,893 | HF 5001-5392 Business |
| 2,238 13% | 1,982 19% | 1,671 | HF 5401-5541 Marketing, Distribution |
| 2,909 12% | 2,594 12% | 2,317 | HF 5546-5549 Office Organization/Management |
| 1,547 4% | 1,484 7% | 1,388 | HF 5601-5689 Accounting |
| 140 3% | 136 3% | 132 | HF 5691-5716 Business Mathematics |
| 286 20% | 239 21% | 197 | HF 5717-5746 Business Communication |
| 130 1% | 129 2% | 127 | HF 5761-5780 Shipping of Merchandise |
| 906 14% | 794 13% | 702 | HF 5801-6182 Advertising |
| 1,063 25% | 850 23% | 690 | any other HF |
| 20,657 18% | 17,568 15% | 15,293 | HG Finance |
| 11,767 6% | 11,072 8% | 10,211 | HJ Public Finance |
| 5 0% | 5 67% | 3 | any other HB-HJ |
| 12,048 13% | 10,688 12% | 9,510 | HM Sociology: General Works, Theory |
| 17,578 15% | 15,295 18% | 12,938 | HN Sociology: Social History and Conditions |
| 204 6% | 192 6% | 181 | HQ 1-10 Family, Marriage, Women, Sexual Life, General Works |
| 5,117 28% | 4,003 31% | 3,061 | HQ 12-472 Sexual Life |
| 11,774 16% | 10,182 17% | 8,692 | HQ 503-1058 Family, Marriage, Home |
| 2,355 14% | 2,058 17% | 1,759 | HQ 1059-1073 Middle Age, Aged, Gerontology (Social aspects), Retirement, Death, Dying |
| 531 50% | 353 56% | 226 | HQ 1075-1090 Sex Role, Men |
| 10,419 27% | 8,211 33% | 6,157 | HQ 1101-2044 Women, Feminism, Life Skills, Life Style |
| 1,622 9% | 1,493 11% | 1,342 | HS Societies: Secret, Benevolent |
| 12,651 16% | 10,933 19% | 9,205 | HT Communities, Classes, Races |
| 35 6% | 33 10% | 30 | any other HQ-HT |
| 17,278 14% | 15,213 12% | 13,552 | HV 1-4995 Social Work |
| 3,134 17% | 2,673 20% | 2,230 | HV 4997-5840 Substance Abuse |
| 14,791 18% | 12,544 17% | 10,721 | HV 6001-9999 Criminology and Penology |
| 18,532 7% | 17,253 13% | 15,218 | HX Socialism, Communism, Anarchism, Utopianism |
| 82 11% | 74 -9% | 81 | any other HM-HX |
| 1 -67% | 3 -70% | 10 | any other H-HZ |
| 100,219 9% | 91,807 10% | 83,245 | J-JZ |
| 3,471 1% | 3,449 -3% | 3,557 | J Official Documents |
| 5,352 9% | 4,918 9% | 4,497 | JA Political Science: Collections |
| 11,198 18% | 9,459 17% | 8,065 | JC Political Theory |
| 8,771 4% | 8,425 7% | 7,883 | JF Constitutional History & Administration: General, Comparative |
| 12,331 6% | 11,625 7% | 10,849 | JK Constitutional History & Administration: United States |
| 2,376 24% | 1,917 17% | 1,637 | JL Constitutional History & Administration: British, Latin American |
| 15,105 9% | 13,916 10% | 12,613 | JN Constitutional History & Administration: Europe |
| 15,881 12% | 14,176 15% | 12,326 | JQ Constitutional History & Administration: Asia, Africa, Australia, Oceania |
| 34 62% | 21 -54% | 46 | any other JF-JQ |
| 7,682 6% | 7,263 6% | 6,834 | JS Local Government |
| 1,107 8% | 1,027 5% | 981 | JV 1-5399 Colonies and Colonization |
| 1,827 25% | 1,461 28% | 1,140 | JV 6001-9500 Emigration & Immigration |
| 12 0% | 12 9% | 11 | any other JV |
| 14,541 3% | 14,134 10% | 12,803 | JX International Law |
| 529 - | - | - | JZ International Relations |
| 2 -50% | 4 33% | 3 | any other J-JZ |
| 23,938 35% | 17,756 36% | 13,020 | K-KZ |
| 3,305 20% | 2,744 30% | 2,104 | K-KC Law (General) |
| 1,078 22% | 882 25% | 706 | KD Law: United Kingdom and Ireland |
| 342 18% | 291 24% | 234 | KE Law: Canada |
| 41 24% | 33 27% | 26 | KEA-KEY Law: Canada - Provinces and Territories |
| 0 - | 0 - | 0 | KEZ Law: Canada - Cities |
| 9,565 43% | 6,690 26% | 5,299 | KF Law: U.S. (Federal) |
| 867 19% | 731 26% | 582 | KFA-KFW Law: U.S. States and Territories |
| 40 5% | 38 245% | 11 | KFX Law: U.S. Cities |
| 3 0% | 3 0% | 3 | KFZ Law of Individual Territories |
| 248 108% | 119 - | - | KG-KHW Law: Latin America, West Indies |
| 2,444 44% | 1,698 - | - | KJ-KKZ Law: Germany |
| 5,836 29% | 4,527 - | - | KL-KWX Law: Other Jurisdictions |
| 169 - | - | - | KZ Law of Nations |
| 0 - | 0 - | - | any other KG-KWX |
| 0 - | 0 -100% | 28 | any other K-KZ |
| 74,525 9% | 68,184 7% | 63,686 | L-LZ |
| 3,914 3% | 3,800 1% | 3,759 | L Education (General) |
| 12,782 10% | 11,600 9% | 10,645 | LA History of Education |
| 10,447 8% | 9,705 2% | 9,475 | LB 5-1050.7 Theory and Practice of Education (General) |
| 1,665 10% | 1,520 3% | 1,482 | LB 1050.9-1091 Educational Psychology |
| 1,701 6% | 1,598 2% | 1,566 | LB 1101-1139 Child Study |
| 5,868 6% | 5,547 -1% | 5,593 | LB 1140-1695 Pre-school - 12 |
| 2,022 10% | 1,831 9% | 1,678 | LB 1705-2286 Education and Training of Teachers |
| 5,415 11% | 4,889 11% | 4,401 | LB 2300-2430 Higher Education |
| 5,581 14% | 4,897 13% | 4,339 | LB 2799-3095 Consulting, Administration, Organization |
| 1,331 5% | 1,270 2% | 1,246 | LB 3201-3640 School Buildings, Equipment, Health, Special Days, Student Life |
| 14,303 15% | 12,394 14% | 10,871 | LC Special Aspects of Education |
| 4,071 2% | 3,991 3% | 3,864 | LD Education: Institutions; United States |
| 367 8% | 340 3% | 329 | LE Education: Institutions; America (Except U.S.) |
| 2,544 6% | 2,396 5% | 2,283 | LF Education: Institutions; Europe |
| 1,225 8% | 1,134 13% | 1,004 | LG Education: Institutions; Asia, Africa, Oceania |
| 347 1% | 343 30% | 263 | LH College & School Magazines and Papers |
| 297 4% | 285 1% | 282 | LJ Student Fraternities and Societies |
| 151 3% | 146 -3% | 151 | LT Textbooks |
| 494 -1% | 498 9% | 455 | any other L-LZ |
| 89,233 14% | 78,429 15% | 68,031 | M-MZ |
| 4,820 8% | 4,475 9% | 4,120 | M 1-4 Music: Collections, Manuscripts, Collected Works |
| 29,863 19% | 25,189 23% | 20,488 | M 5-1490 Instrumental Music, Music Before 1700 |
| 15,946 13% | 14,135 14% | 12,350 | M 1495-5000 Vocal Music |
| 439 -26% | 594 -5% | 624 | any other M |
| 31,633 13% | 27,988 12% | 24,924 | ML Literature of Music |
| 6,511 8% | 6,037 9% | 5,516 | MT Musical Instruction and Study |
| 21 91% | 11 22% | 9 | any other M-MZ |
| 128,238 16% | 110,324 13% | 98,008 | N-NZ |
| 36,444 17% | 31,183 12% | 27,857 | N Visual Arts (General) |
| 27,197 17% | 23,148 15% | 20,092 | NA Architecture |
| 6,875 20% | 5,742 12% | 5,147 | NB Sculpture |
| 6,236 14% | 5,447 9% | 4,995 | NC Graphic Arts (General), Drawing, Design |
| 29,447 15% | 25,529 11% | 23,030 | ND Painting |
| 4,504 11% | 4,041 9% | 3,718 | NE Print Media: Printmaking, Engraving, Lithography |
| 14,047 14% | 12,323 14% | 10,775 | NK Decorative Arts, Applied Arts, Crafts |
| 3,459 20% | 2,883 21% | 2,384 | NX Arts in General |
| 29 4% | 28 180% | 10 | any other N-NZ |
| 765,558 11% | 692,492 12% | 617,601 | P-PZ |
| 15,368 16% | 13,249 17% | 11,363 | P Philology, Linguistics |
| 3,734 6% | 3,527 5% | 3,348 | PA 1-2995 Classical Philology |
| 55 10% | 50 11% | 45 | PA 3000-3049 Classical Literature |
| 10,626 5% | 10,112 8% | 9,338 | PA 3050-4500 Greek Literature |
| 803 40% | 574 9% | 527 | PA 5000-5665 Byzantine & Modern Greek Literature |
| 8,492 4% | 8,171 5% | 7,794 | PA 6000-7041 Latin Literature |
| 1,523 7% | 1,419 7% | 1,323 | PA 8001-8595 Medieval and Modern Latin Literature |
| 13 -19% | 16 7% | 15 | any other PA |
| 135 53% | 88 7% | 82 | PB 1-431 Modern Languages: General |
| 824 10% | 749 11% | 675 | PB 1001-3029 Celtic Languages and Literature |
| 1 0% | 1 0% | 1 | any other PB |
| 38 6% | 36 6% | 34 | PC 1-400 Romanic Philology and Languages: General |
| 1,386 6% | 1,306 5% | 1,244 | PC 601-872 Romanian Language and Literature |
| 1 0% | 1 0% | 1 | PC 890 Dalmatian |
| 2 0% | 2 0% | 2 | PC 901-986 Raeto-Romance Language and Literature |
| 1,195 10% | 1,086 8% | 1,009 | PC 1001-1984 Italian Language, Sardinian Language and Literature |
| 5,057 8% | 4,667 8% | 4,339 | PC 2001-3761 French Language |
| 1,318 5% | 1,260 14% | 1,106 | PC 3801-3976 Catalan Language and Literature |
| 2,754 10% | 2,498 12% | 2,234 | PC 4001-4977 Spanish Language |
| 402 7% | 374 7% | 351 | PC 5001-5498 Portuguese Language |
| 746 7% | 698 5% | 664 | any other PC |
| 30 20% | 25 19% | 21 | PD 1-777 Germanic Philology and Languages: General |
| 131 1% | 130 2% | 127 | PD 1001-1350 Old Germanic Dialects |
| 733 2% | 719 6% | 678 | PD 1501-7159 North Germanic, Scandinavian |
| 0 - | 0 - | 0 | any other PD |
| 9,399 7% | 8,779 9% | 8,078 | PE English Philology and Language |
| 55 2% | 54 6% | 51 | PF 1-979 Dutch Language |
| 0 - | 0 - | 0 | PF 1001-1184 Flemish Language |
| 175 7% | 164 2% | 160 | PF 1401-1558 Friesian Language and Literature |
| 6,652 5% | 6,322 7% | 5,888 | PF 3001-5999 German Language |
| 737 3% | 714 11% | 642 | any other PF |
| 64 19% | 54 15% | 47 | PG 1-499 Slavic Philology: General |
| 129 2% | 126 4% | 121 | PG 500-585 Slavic Literature: General |
| 11 22% | 9 12% | 8 | PG 601-799 Church Slavic |
| 5,039 4% | 4,864 8% | 4,488 | PG 801-1158 Bulgarian Language and Literature |
| 307 4% | 296 3% | 286 | PG 1161-1164 Macedonian Language and Literature |
| 8,462 12% | 7,572 7% | 7,074 | PG 1171-1798 Serbo-Croatian Language and Literature |
| 1,082 10% | 984 5% | 939 | PG 1801-1998 Slovenian Language and Literature |
| 3,582 4% | 3,430 12% | 3,056 | PG 2001-2850 Russian Language |
| 6,007 5% | 5,741 12% | 5,127 | PG 2900-3155 Russian Literature: History and Criticism |
| 119 3% | 115 22% | 94 | PG 3200-3299 Russian Literature: Collections |
| 24,728 8% | 22,934 17% | 19,566 | PG 3300-3490 Russian Literature: Individual Authors |
| 11 0% | 11 57% | 7 | PG 3500-3560 Russian Literature: Provincial and Local |
| 1 - | 0 - | 0 | PG 3561-3800 Subjects other than Russian Literature |
| 0 - | 0 - | 0 | any other PG 2001-3800 |
| 2,811 3% | 2,729 9% | 2,511 | PG 3801-3998 Ukranian Language and Literature |
| 3,758 4% | 3,629 15% | 3,159 | PG 4001-5198 Czech Language and Literature |
| 3,923 3% | 3,816 6% | 3,604 | PG 5201-5598 Slovak Language and Literature |
| 75 6% | 71 4% | 68 | PG 5631-5698 Sorbian Language and Literature |
| 8,212 2% | 8,060 8% | 7,461 | PG 6001-7498 Polish Language and Literature |
| 28 0% | 28 12% | 25 | PG 7900-7948 Minor Slavic Dialects |
| 461 12% | 412 22% | 338 | PG 8001-9263 Baltic Languages |
| 304 14% | 267 11% | 240 | PG 9501-9678 Albanian |
| 17 13% | 15 36% | 11 | any other PG |
| 88 6% | 83 11% | 75 | PH 1-79 Finno-Ugrian and Basque: General |
| 1,002 2% | 987 -0% | 988 | PH 91-498 Finnish Language and Literature |
| 370 25% | 297 17% | 253 | PH 501-1109 Other Finnish Languages and Dialects |
| 1,148 5% | 1,093 5% | 1,037 | PH 1201-3718 Hungarian, Ugrian Languages and Literature |
| 115 6% | 108 4% | 104 | PH 5001-5490 Basque Language and Literature: General |
| 10 0% | 10 11% | 9 | any other PH |
| 661 9% | 606 7% | 569 | PJ 1-995 Oriental Philology and Literature: General |
| 478 8% | 442 12% | 396 | PJ 1001-1989 Egyptology |
| 112 5% | 107 4% | 103 | PJ 2001-2199 Coptic |
| 149 15% | 130 10% | 118 | PJ 2301-2551 Hamitic |
| 694 14% | 610 15% | 529 | PJ 3001-4091 Semitic Philology, Assyrian, Sumerian |
| 11,880 11% | 10,656 13% | 9,422 | PJ 4101-5809 Hebrew, Aramaic, Syriac |
| 25,140 19% | 21,153 - | 0 | PJ 5901-9293 Arabic, Ethiopian |
| 241 12% | 216 -99% | 18,012 | any other PJ |
| 114 9% | 105 18% | 89 | PK 1-90 Indo-Iranian Philology and Literature: General |
| 40,562 13% | 36,053 22% | 29,629 | PK 101-2891 Indo-Aryan Languages |
| 4,921 15% | 4,292 17% | 3,653 | PK 2901-5534 Indo-Aryan Literature |
| 5,316 12% | 4,747 16% | 4,097 | PK 6001-6599 Iranian Philology and Literature |
| 362 9% | 333 15% | 289 | PK 6701-6996 Afghan, Beluchi, Kurdish, Ossetic |
| 2,996 9% | 2,739 100% | 1,369 | PK 7001-9601 Dardic, Armenian, Caucasian Languages |
| 568 4% | 547 7% | 512 | any other PK |
| 8,080 14% | 7,100 19% | 5,954 | PL 1-489 Ural-Altaic Languages |
| 129 3% | 125 11% | 113 | PL 490-495 East Asiatic Languages & Literature (General), Ainu |
| 25,097 10% | 22,852 14% | 20,021 | PL 501-898 Japanese Language and Literature |
| 1,300 44% | 904 62% | 558 | PL 901-998 Korean Language and Literature |
| 42,526 7% | 39,567 9% | 36,467 | PL 1001-3299 Chinese Language and Literature |
| 170 10% | 154 25% | 123 | PL 3301-3505 Non-Chinese Languages of China |
| 10,008 22% | 8,192 22% | 6,739 | PL 3521-4587 Indo-Chinese, Karen, Thai Languages |
| 8,300 13% | 7,350 37% | 5,379 | PL 4601-4961 Dravidian Languages and Literature |
| 9,445 13% | 8,350 27% | 6,600 | PL 5001-7101 Oceanic Languages |
| 11 38% | 8 33% | 6 | PL 7501-7893 Unclassed Languages of Asia and the Pacific |
| 963 11% | 868 10% | 789 | PL 8000-8844 African Languages |
| 87 12% | 78 7% | 73 | any other PL |
| 72 24% | 58 9% | 53 | PM 1-95 Hyperborean Languages of America and Asia |
| 859 23% | 697 13% | 618 | PM 101-7356 American Languages |
| 254 34% | 189 34% | 141 | PM 7801-7895 Mixed Languages, Creole, Pidgeon English |
| 256 3% | 249 5% | 238 | PM 8001-9021 Artificial & Secret Languages, Esperanto |
| 1 0% | 1 -50% | 2 | any other PM |
| 458 7% | 427 5% | 407 | PN 1-44 Literature: Periodicals, Yearbooks, Societies |
| 2,475 20% | 2,065 23% | 1,673 | PN 45-75 Literature: Theory, Philosophy, Esthetics |
| 857 18% | 728 17% | 622 | PN 80-99 Literary Criticism |
| 888 12% | 794 16% | 684 | PN 101-249 Authorship |
| 21,901 11% | 19,782 9% | 18,204 | PN 441-1009 Literary History |
| 2,092 7% | 1,961 6% | 1,855 | PN 1010-1590 Poetry, the Performing Arts, Show Biz |
| 161 10% | 146 -6% | 155 | PN 1600-1657 The Drama: Periodicals, Yearbooks, General Works |
| 187 7% | 175 -9% | 192 | PN 1660-1864 Technique of Dramatic Composition, History of Drama |
| 726 13% | 643 18% | 545 | PN 1865-1989 Historical & Religious Plays, Tragedy |
| 1,489 25% | 1,194 21% | 985 | PN 1990-1992 Broadcasting |
| 10,345 25% | 8,266 21% | 6,830 | PN 1993-1999 Motion Pictures |
| 3,047 10% | 2,781 14% | 2,437 | PN 2000-2081 The Theater: General |
| 297 10% | 271 -3% | 278 | PN 2085-2219 The Theater: The Stage, Accessories, History by Period |
| 446 15% | 389 5% | 372 | PN 2220-2298 The Theater in the United States |
| 18 29% | 14 40% | 10 | PN 2300-2554 The Theater in the Americas except U.S. |
| 1,258 7% | 1,181 7% | 1,105 | PN 2570-2859 The Theater in Europe |
| 2,434 20% | 2,035 23% | 1,651 | PN 2860-3030 The Theater in Asia, Africa, and Oceania |
| 64 23% | 52 11% | 47 | PN 3035 Jewish Theater |
| 84 6% | 79 -1% | 80 | PN 3151-3191 The Theater: Amateur and College Theatricals |
| 46 7% | 43 8% | 40 | PN 3195-3300 The Theater: Minstrel Shows, Spectacles, Tableaux |
| 1 0% | 1 0% | 1 | any other PN 2000-3300 |
| 1,496 9% | 1,372 7% | 1,288 | PN 3311-3503 Prose, Prose Fiction, the Short Story |
| 1,642 2% | 1,605 3% | 1,555 | PN 4001-4355 Oratory, Elocution |
| 62 17% | 53 26% | 42 | PN 4390-4500 Diaries, Letters and Essays |
| 7,790 12% | 6,943 16% | 5,992 | PN 4699-5650 Journalism and the Periodical Press |
| 1,138 7% | 1,060 12% | 949 | PN 6010-6078 Literature: General Collections |
| 442 15% | 383 14% | 336 | PN 6080-6095 Collections of Quotations |
| 512 7% | 479 - | 0 | PN 6099-6120 Collections of Poetry and Drama |
| 219 6% | 207 8% | 192 | PN 6121-6146 Collections of Orations, Letters, Essays |
| 957 15% | 835 19% | 702 | PN 6147-6231 Wit and Humor, Satire |
| 697 10% | 635 9% | 584 | PN 6233-6381 Anacreontic Literature, Extracts |
| 1,388 12% | 1,241 14% | 1,085 | PN 6400-6525 Proverbs |
| 304 23% | 247 32% | 187 | PN 6700-6790 Comic Books, Strips |
| 46 28% | 36 -93% | 492 | any other PN |
| 426 -1% | 432 0% | 432 | PQ 1-845 French Literature: History and Criticism |
| 2,263 4% | 2,168 6% | 2,039 | PQ 1100-1297 Collections of French Literature |
| 156 4% | 150 2% | 147 | PQ 1300-1595 Old French Literature, to ca. 1525 |
| 401 -0% | 403 -1% | 407 | PQ 1600-1709 French Literature, 16th Century |
| 348 -1% | 351 -2% | 358 | PQ 1710-1935 French Literature, 17th Century |
| 716 2% | 704 -1% | 711 | PQ 1947-2147 French Literature, 18th Century |
| 1,095 2% | 1,074 -4% | 1,114 | PQ 2149-2551 French Literature, 19th Century |
| 1,092 1% | 1,080 -6% | 1,146 | PQ 2600-2651 French Literature, 1900-1961 |
| 100 25% | 80 5% | 76 | PQ 2660-2686 French Literature, 1961- |
| 6 20% | 5 0% | 5 | PQ 3800-3899 French Literature: Provincial, Local, Colonial |
| 18 12% | 16 33% | 12 | PQ 3900-3919 French Literature: Canada |
| 104 24% | 84 14% | 74 | PQ 3920-3999 French Literature: U.S., West Indies, South America, Mexico, Central America |
| 56,706 7% | 52,837 10% | 48,085 | any other PQ 1-3999 |
| 2,035 17% | 1,734 13% | 1,529 | PQ 4001-4263 Italian Literature: History and Criticism |
| 258 4% | 247 -2% | 252 | PQ 4265-4556 Italian Literature to 1400 |
| 390 5% | 372 1% | 368 | PQ 4561-4664 Italian Literature, 1400-1700 |
| 96 4% | 92 1% | 91 | PQ 4675-4734 Italian Literature, 1701-1900 |
| 200 10% | 181 3% | 176 | PQ 4800-4886 Italian Literature, 1901- |
| 8 0% | 8 14% | 7 | PQ 5901-5999 Italian Literature: Provincial, Local, Colonial |
| 13,475 18% | 11,450 16% | 9,894 | any other PQ 4001-5999 |
| 8,951 18% | 7,584 13% | 6,687 | PQ 6001-6269 Spanish Literature: History, Criticism, Collections |
| 799 14% | 701 -1% | 706 | PQ 6271-6498 Spanish Literature to 1700 |
| 138 0% | 138 1% | 137 | PQ 6500-6576 Spanish Literature, 1700-ca. 1868 |
| 233 4% | 224 -4% | 233 | PQ 6600-6647 Spanish Literature, 1868-1960 |
| 19 58% | 12 20% | 10 | PQ 6651-6676 Spanish Literature, 1961- |
| 28 4% | 27 12% | 24 | PQ 7000-7079 Spanish Literature: Provincial, & in Europe, North America |
| 126 12% | 113 9% | 104 | PQ 7080-7087 Spanish Literature in Spanish America (General) |
| 106 9% | 97 5% | 92 | PQ 7100-7349 Spanish Literature of Mexico, former U.S. Spanish Provinces |
| 111 12% | 99 14% | 87 | PQ 7361-7539 Spanish Literature of W. Indies and Central America |
| 264 10% | 239 3% | 233 | PQ 7551-8560 Spanish Literature of South America |
| 34 13% | 30 7% | 28 | PQ 8600-8929 Spanish Literature of Africa, Asia, Australia |
| 30,169 18% | 25,472 16% | 21,930 | any other PQ 6001-8929 |
| 957 14% | 841 11% | 759 | PQ 9000-9189 Portuguese Literature: History, Criticism, Collection |
| 58 49% | 39 3% | 38 | PQ 9191-9255 Portuguese Literature to 1700 |
| 56 19% | 47 -4% | 49 | PQ 9261-9288 Portuguese Literature since 1700 |
| 1 0% | 1 0% | 1 | PQ 9400-9479 Portuguese Literature: Provincial and in Europe, U.S., Canada |
| 10 11% | 9 0% | 9 | PQ 9500-9696 Portuguese Literature of Brazil, to 1800 |
| 47 21% | 39 3% | 38 | PQ 9697-9699 Portuguese Literature of Brazil, since 1800 |
| 3 0% | 3 200% | 1 | PQ 9900-9999 Portuguese Literature of Africa, Asia, Australia |
| 5,092 15% | 4,436 14% | 3,902 | any other PQ 9000-9999 |
| 146 9% | 134 0% | 134 | any other PQ |
| 139 4% | 134 7% | 125 | PR 1-78 English Literature: Literary History and Criticism |
| 284 1% | 280 0% | 280 | PR 81-151 History of English Literature, General |
| 436 -2% | 446 2% | 436 | PR 161-479 History of English Literature, by Period |
| 993 -6% | 1,053 1% | 1,045 | PR 500-978 History of English Literature, by Form |
| 7,485 9% | 6,860 9% | 6,270 | PR 1098-1395 English Literature: Collections |
| 115 2% | 113 0% | 113 | PR 1490-1799 Anglo-Saxon Literature |
| 354 -2% | 360 -3% | 372 | PR 1803-2165 Anglo-Norman and Early Middle English Literature |
| 509 -2% | 521 -4% | 542 | PR 2199-2405 English Renaissance Literature, Prose and Poetry |
| 12 9% | 11 0% | 11 | PR 2411-2416 English Renaissance Drama: Anonymous Plays |
| 345 -4% | 358 -4% | 372 | PR 2417-2749 English Renaissance Drama: Plays, Playwrights A-Shaj |
| 7,511 17% | 6,436 3% | 6,245 | PR 2750-3112 Shakespeare |
| 70 -3% | 72 -1% | 73 | PR 3135-3198 English Renaissance Drama: Plays, Playwrights Shar-Z |
| 0 - | 0 - | 0 | any other PR 2199-3198 |
| 5,167 -0% | 5,179 -2% | 5,282 | PR 3291-3785 English Literature, 17th and 18th Centuries |
| 7,202 1% | 7,098 -2% | 7,264 | PR 3991-5990 English Literature, 19th Century |
| 3,844 2% | 3,770 -3% | 3,895 | PR 6000-6049 English Literature, 1900-1960 |
| 1,015 12% | 905 16% | 779 | PR 6050-6076 English Literature, 1961- |
| 144 15% | 125 10% | 114 | PR 8309-9177 English Literature: Provincial, Colonial |
| 217 20% | 181 27% | 142 | PR 9180-9199 English Literature: Canada |
| 2,503 26% | 1,989 52% | 1,306 | PR 9200-9899 English Literature: Latin America, Africa, Asia, Orient, Australia, New Zealand |
| 10,092 14% | 8,846 -81% | 46,995 | any other PR |
| 2,233 12% | 1,991 12% | 1,781 | PS 1-478 American Literature: General, Criticism, History |
| 1,194 15% | 1,040 15% | 902 | PS 501-690 American Literature: Collections |
| 62 -3% | 64 3% | 62 | PS 700-893 American Literature, Colonial Period |
| 3,583 2% | 3,503 -0% | 3,518 | PS 991-3390 American Literature, 19th Century |
| 8,549 12% | 7,622 16% | 6,570 | PS 3500-3549 American Literature, 1900-1960 |
| 5,350 28% | 4,165 26% | 3,314 | PS 3550-3576 American Literature, 1961- |
| 8 0% | 8 60% | 5 | PS 8001-8599 Canadian Literature |
| 1 0% | 1 - | 0 | PS 9001-9599 Canadian Literature: French |
| 96,560 11% | 87,264 122% | 39,279 | any other PS |
| 6,163 7% | 5,739 8% | 5,316 | PT 1-1021 German Literature: History, Criticism, Folk Literature |
| 2,306 8% | 2,142 6% | 2,027 | PT 1100-1485 Collections of German Literature |
| 73 0% | 73 0% | 73 | PT 1501-1695 German Literature, 1050-1450/1500 |
| 33 0% | 33 3% | 32 | PT 1701-1797 German Literature, 1500-ca. 1700 |
| 1,112 2% | 1,090 -1% | 1,106 | PT 1799-2592 German Literature, 1700-ca. 1860/70 |
| 1,008 5% | 958 -2% | 980 | PT 2600-2659 German Literature, 1860/70-1960 |
| 113 49% | 76 7% | 71 | PT 2660-2688 German Literature, 1961- |
| 66 6% | 62 41% | 44 | PT 3701-4899 German Literature: Provincial, Local, Colonial |
| 0 - | 0 - | 0 | any other PT 1-4999 |
| 300 9% | 274 5% | 260 | PT 5001-5395 Dutch Literature: History and Criticism |
| 174 9% | 160 21% | 132 | PT 5400-5547 Dutch Literature: Collections |
| 79 4% | 76 -93% | 1,137 | PT 5555-5880 Dutch Literature through 1960 |
| 2,360 6% | 2,234 109% | 1,070 | PT 5881 Dutch Literature, 1961- |
| 3 0% | 3 - | 0 | PT 5885-5980 Translations into Dutch, Provincial Dutch Literature |
| 0 - | 0 - | 0 | any other PT 5001-5980 |
| 4 0% | 4 0% | 4 | PT 6000-6471 Flemish Literature since 1830 |
| 1 0% | 1 0% | 1 | PT 6500-6590 Afrikaans Literature to 1960 |
| 7 17% | 6 20% | 5 | PT 6592 Afrikaans Literature since 1961 |
| 0 - | 0 - | 0 | any other PT 6500-6592 |
| 84 4% | 81 5% | 77 | PT 7001-7099 Scandinavian Literature: General |
| 666 2% | 651 2% | 636 | PT 7101-7599 Icelandic, Old Norwegian, Faroese |
| 383 1% | 381 -78% | 1,756 | PT 7601-8260 Danish Literature |
| 3,021 2% | 2,957 94% | 1,526 | PT 8301-9155 Norwegian Literature |
| 1,777 5% | 1,697 2% | 1,663 | PT 9201-9999 Swedish Literature |
| 32,491 9% | 29,937 9% | 27,455 | any other PT |
| 25 -4% | 26 0% | 26 | PZ 1-4 Fiction in English |
| 7,034 8% | 6,485 10% | 5,919 | PZ 5-10 Juvenile Literature: American and English |
| 1,009 3% | 984 7% | 919 | PZ 11-99 Juvenile Literature: Foreign |
| 72 -1% | 73 -3% | 75 | any other PZ |
| 8 0% | 8 - | 0 | any other P-PZ |
| 251,101 8% | 231,451 10% | 210,748 | Q-QZ |
| 17,966 - | - | - | Q 1-299 Science, General |
| 1,112 - | - | - | Q 300-385 Cybernetics |
| 11,719 6% | 11,088 5% | 10,533 | QA 1-74 Mathematics (General) |
| 12,019 20% | 10,051 30% | 7,726 | QA 75-76 Computer Science |
| 1,328 4% | 1,272 2% | 1,251 | QA 77-141 Elementary Mathematics, Arithmetic |
| 7,708 8% | 7,127 10% | 6,501 | QA 150-272 Algebra |
| 2,286 7% | 2,134 14% | 1,874 | QA 273-275 Probabilities |
| 2,717 12% | 2,429 17% | 2,080 | QA 276-280 Statistics |
| 1,098 7% | 1,029 15% | 898 | QA 281-299 Mathematics, Numerical Analysis |
| 10,922 7% | 10,190 10% | 9,241 | QA 300-433 Mathematical Analysis (Calculus, etc.) |
| 6,332 7% | 5,912 10% | 5,374 | QA 440-799 Geometry, Trigonometry |
| 2,875 6% | 2,714 6% | 2,549 | QA 801-939 Analytic Mechanics |
| 190 -4% | 197 -4% | 205 | any other QA |
| 12,373 7% | 11,535 9% | 10,584 | QB Astronomy |
| 6,467 5% | 6,130 10% | 5,564 | QC 1-75 Physics (General) |
| 1,121 -1% | 1,127 3% | 1,095 | QC 81-119 Weights and Measures |
| 718 8% | 663 12% | 592 | QC 120-168 Experimental Mechanics |
| 4,818 10% | 4,379 17% | 3,757 | QC 170-220 Constitution and Properties of Matter |
| 398 7% | 372 8% | 346 | QC 221-246 Sound |
| 1,212 5% | 1,159 5% | 1,107 | QC 251-338 Heat |
| 3,286 6% | 3,094 9% | 2,830 | QC 350-496 Light, Optics, Radiation (General) |
| 8,063 10% | 7,362 12% | 6,582 | QC 501-798 Electricity, Magnetism, Nuclear Physics |
| 728 6% | 690 6% | 648 | QC 801-849 Geophysics, Geomagnetism |
| 3,905 12% | 3,498 12% | 3,129 | QC 851-999 Meteorology, Climatology |
| 59 -12% | 67 5% | 64 | any other QC |
| 3,901 5% | 3,722 6% | 3,505 | QD 1-69 Chemistry (General) |
| 2,395 6% | 2,269 7% | 2,121 | QD 71-145 Analytical Chemistry |
| 1,189 5% | 1,130 6% | 1,069 | QD 146-199 Inorganic Chemistry |
| 4,052 7% | 3,771 7% | 3,534 | QD 241-449 Organic Chemistry |
| 5,110 7% | 4,797 7% | 4,497 | QD 450-731 Physical and Theoretical Chemistry |
| 1,027 9% | 946 8% | 875 | QD 901-999 Crystallography |
| 34 -11% | 38 0% | 38 | any other QD |
| 4,067 6% | 3,841 10% | 3,491 | QE 1-64 Geology (General) |
| 4,774 7% | 4,479 6% | 4,235 | QE 65-350 Regional Geology |
| 5,292 12% | 4,708 11% | 4,253 | QE 351-625 Minerology, Petrology, Structural Geology |
| 4,786 7% | 4,471 9% | 4,091 | QE 640-996 Stratigraphy, Paleontology |
| 340 10% | 310 4% | 299 | any other Q-QE |
| 8,318 9% | 7,636 10% | 6,922 | QH 1-199 Natural History (General) |
| 684 7% | 638 6% | 600 | QH 201-278 Microscopy |
| 12,596 13% | 11,149 13% | 9,909 | QH 301-705 Biology (General) |
| 165 -4% | 172 -4% | 180 | any other QH |
| 8,311 8% | 7,730 8% | 7,169 | QK 1-474 Botany (General) |
| 9,017 6% | 8,483 7% | 7,909 | QK 475-989 Botany (Specific Fields) |
| 225 -4% | 234 -0% | 235 | any other QK |
| 6,087 7% | 5,701 6% | 5,393 | QL 1-355 Zoology (General) |
| 17,557 10% | 15,892 11% | 14,323 | QL 362-739 Invertebrate and Vertebrate Zoology |
| 2,472 6% | 2,330 5% | 2,218 | QL 750-991 Ethology, Anatomy, Embryology |
| 480 -4% | 498 -7% | 534 | any other QL |
| 3,825 8% | 3,533 5% | 3,349 | QM Human Anatomy |
| 6,513 9% | 5,951 10% | 5,418 | QP 1-348 Physiology (General) |
| 3,777 13% | 3,357 12% | 2,986 | QP 351-499 Nervous System and the Senses |
| 4,950 13% | 4,381 15% | 3,820 | QP 501-801 Animal Biochemistry |
| 393 8% | 363 6% | 344 | QP 901-981 Experimental Pharmacology |
| 2,703 -0% | 2,716 0% | 2,704 | any other QP |
| 4,632 13% | 4,107 13% | 3,647 | QR Microbiology |
| 1 0% | 1 0% | 1 | any other QH-QR |
| 8 33% | 6 200% | 2 | any other Q-QZ |
| 159,105 13% | 140,825 14% | 123,296 | R-RZ |
| 2,451 12% | 2,182 12% | 1,951 | R 1-130 Medicine: Periodicals, Societies, General Topics |
| 3,074 11% | 2,761 13% | 2,453 | R 131-687 Medicine: History, Medical Expeditions |
| 5,949 20% | 4,954 25% | 3,967 | R 690-920 Medicine: Special Subjects |
| 4,148 -0% | 4,151 0% | 4,137 | any other R |
| 7,794 23% | 6,350 33% | 4,766 | RA 3-420 Medicine and the State |
| 12,582 17% | 10,796 22% | 8,880 | RA 421-790 Public Health |
| 189 14% | 166 6% | 156 | RA 791-955 Medical Geography |
| 6,077 - | - | - | RA 960-1000.5 Medical Centers, Hospitals |
| 1,106 7% | 1,037 7% | 969 | RA 1001-1171 Forensic Medicine, Medical Jurisprudence |
| 2,203 22% | 1,802 24% | 1,456 | RA 1190-1270 Toxicology |
| 112 -96% | 2,896 1% | 2,877 | any other RA |
| 4,508 9% | 4,120 11% | 3,715 | RB Pathology |
| 3,675 13% | 3,239 14% | 2,851 | RC 1-106 Internal Medicine, Medical Practice: General Works |
| 2,002 9% | 1,840 9% | 1,685 | RC 110-253 Infectious and Parasitic Diseases |
| 4,613 16% | 3,984 16% | 3,436 | RC 254-298 Neoplasma, Neoplastic Diseases |
| 350 18% | 296 8% | 274 | RC 306-320 Tuberculosis |
| 4,509 15% | 3,916 16% | 3,387 | RC 321-431 Neurology |
| 12,413 18% | 10,535 19% | 8,865 | RC 435-576 Psychiatry, Psychopathology |
| 1,820 15% | 1,585 23% | 1,290 | RC 578-632 Allergic, Metabolic, Nutritional Diseases |
| 10,518 15% | 9,183 16% | 7,900 | RC 633-935 Diseases of Organs, Glands, Systems |
| 432 18% | 365 14% | 321 | RC 936-951 Diseases of Regions of the Body |
| 836 9% | 767 22% | 628 | RC 952-954 Geriatrics |
| 8,172 2% | 7,987 2% | 7,798 | RC 955-1245 Arctic and Tropical Medicine, Industrial Medicine, Space Medicine, Sports Medicine, Etc. |
| 86 6% | 81 25% | 65 | any other RC |
| 11,050 14% | 9,674 15% | 8,444 | RD Surgery |
| 2,687 10% | 2,440 12% | 2,181 | RE Opthalmology |
| 1,482 12% | 1,327 10% | 1,202 | RF Otorhinolaryngology |
| 6,189 11% | 5,554 13% | 4,902 | RG Gynecology and Obstetrics |
| 6,782 14% | 5,925 15% | 5,150 | RJ Pediatrics |
| 11,803 16% | 10,211 12% | 9,097 | RK Dentistry |
| 1,268 17% | 1,088 12% | 972 | RL Dermatology |
| 6,280 12% | 5,599 13% | 4,949 | RM Therapeutics, Pharmacology |
| 4,324 9% | 3,977 7% | 3,701 | RS Pharmacy and Materia Medica |
| 6,298 9% | 5,804 13% | 5,158 | RT Nursing |
| 22 38% | 16 7% | 15 | RV Botanic, Thomsonian, Eclectic Medicine |
| 723 3% | 703 1% | 699 | RX Homeopathy |
| 532 6% | 502 8% | 466 | RZ Other Systems of Medicine |
| 46 0% | 46 7% | 43 | any other R-RZ |
| 35,414 7% | 33,097 8% | 30,753 | S-SZ |
| 8,186 6% | 7,723 9% | 7,113 | S 1-760 Agriculture (General) |
| 524 8% | 483 15% | 421 | S 900-972 Conservation of Natural Resources |
| 82 -5% | 86 -2% | 88 | any other S |
| 6,267 9% | 5,764 10% | 5,252 | SB 1-486 Plant Culture |
| 1,927 7% | 1,799 10% | 1,638 | SB 599-1110 Pests and Diseases, Economic Zoology |
| 11,353 6% | 10,709 4% | 10,263 | SD Forestry |
| 1,779 8% | 1,640 10% | 1,485 | SF 1-597 Animal Culture |
| 766 7% | 714 15% | 623 | SF 600-1100 Veterinary Medicine |
| 3,476 9% | 3,192 9% | 2,938 | SH Fish Culture and Fisheries |
| 1,014 7% | 946 6% | 892 | SK Hunting Sports |
| 40 -2% | 41 2% | 40 | any other S-SZ |
| 124,646 13% | 110,443 13% | 97,949 | T-TZ |
| 8,513 10% | 7,742 12% | 6,905 | T Technology-General |
| 17,906 15% | 15,621 17% | 13,371 | TA Engineering-General, Civil Engineering |
| 4,331 6% | 4,074 9% | 3,731 | TC Hydraulic Engineering |
| 10,782 35% | 7,961 21% | 6,606 | TD Environmental Technology, Sanitary Engineering |
| 2,290 7% | 2,135 10% | 1,947 | TE Highway Engineering |
| 2,407 3% | 2,331 3% | 2,272 | TF Railroad Engineering and Operation |
| 1,358 4% | 1,300 4% | 1,256 | TG Bridge Engineering |
| 4,095 10% | 3,727 7% | 3,472 | TH Building Construction |
| 0 - | 0 - | 0 | any other TA-TH |
| 10,151 9% | 9,346 8% | 8,625 | TJ Mechanical Engineering and Machinery |
| 18,712 16% | 16,068 21% | 13,331 | TK Electrical Engineering, Electronics, Nuclear Engineering |
| 10,230 7% | 9,545 8% | 8,852 | TL Motor Vehicles, Aeronautics, Astronautics |
| 0 - | 0 - | 0 | any other TJ-TL |
| 7,250 4% | 6,950 6% | 6,564 | TN Mining Engineering and Metallurgy |
| 8,530 11% | 7,696 11% | 6,949 | TP Chemical Technology |
| 6,621 21% | 5,493 17% | 4,697 | TR Photography |
| 0 - | 0 - | 0 | any other TN-TR |
| 6,485 9% | 5,932 13% | 5,253 | TS Manufactures |
| 1,292 11% | 1,164 9% | 1,072 | TT Handicrafts, Arts and Crafts |
| 3,693 10% | 3,358 10% | 3,045 | TX Domestic Arts |
| 0 - | 0 - | 0 | any other TS-TX |
| 0 - | 0 -100% | 1 | any other T-TZ |
| 19,924 11% | 17,985 11% | 16,147 | U-UZ |
| 5,444 9% | 5,001 12% | 4,475 | U Military Science (General) |
| 7,257 12% | 6,482 12% | 5,762 | UA Armies: Organization, Distribution |
| 2,563 13% | 2,271 11% | 2,039 | UB Military Administration |
| 611 8% | 566 7% | 529 | UC Military Science: Maintenance and Transportation |
| 229 3% | 223 7% | 209 | UD Infantry |
| 144 6% | 136 10% | 124 | UE Cavalry, Armor |
| 924 4% | 892 7% | 836 | UF Artillery |
| 2,393 12% | 2,139 11% | 1,933 | UG Military Engineering |
| 331 31% | 252 15% | 220 | UH Military Science: Other Services |
| 28 22% | 23 15% | 20 | any other U-UZ |
| 7,115 6% | 6,728 6% | 6,335 | V-VZ |
| 1,142 8% | 1,060 8% | 984 | V Naval Science (General) |
| 905 11% | 819 12% | 731 | VA Navies: Organization, Distribution |
| 188 7% | 175 14% | 154 | VB Naval Administration |
| 75 6% | 71 20% | 59 | VC Naval Maintenance |
| 4 0% | 4 0% | 4 | VD Naval Seamen |
| 134 19% | 113 19% | 95 | VE Marines |
| 63 5% | 60 11% | 54 | VF Naval Ordnance |
| 204 9% | 187 10% | 170 | VG Minor Service of Navies |
| 1,601 4% | 1,540 1% | 1,519 | VK Navigation, Merchant Marine |
| 2,794 4% | 2,695 5% | 2,561 | VM Naval Architecture, Shipbuilding |
| 5 25% | 4 0% | 4 | any other V-VZ |
| 95,622 6% | 90,204 9% | 82,820 | Z-ZZ |
| 424 13% | 374 11% | 336 | Z 4-15 History of Books and Bookmaking |
| 2,907 3% | 2,810 4% | 2,690 | Z 40-115 Writing, Paleography |
| 2 100% | 1 0% | 1 | any other Z 4-115 |
| 11,147 6% | 10,520 11% | 9,503 | Z 116-550 Printing |
| 941 7% | 881 9% | 805 | Z 551-661 Copyright, Intellectual Property |
| 0 - | 0 - | 0 | any other Z 116-661 |
| 29,577 6% | 27,877 11% | 25,191 | Z 662-1000 Libraries: Library Science |
| 6,204 6% | 5,857 5% | 5,573 | Z 1001-1121 Bibliography, General |
| 371 8% | 345 8% | 320 | Z 1201-1212 National Bibliography: America |
| 2,223 3% | 2,153 6% | 2,038 | Z 1215-1361 National Bibliography: United States |
| 286 3% | 279 7% | 261 | Z 1365-1401 National Bibliography: Canada |
| 884 9% | 809 9% | 740 | Z 1411-1945 National Bibliography: Mexico, Central and S. America |
| 5,539 5% | 5,251 7% | 4,913 | Z 2000-2959 National Bibliography: Europe |
| 5,328 8% | 4,942 11% | 4,457 | Z 3001-4980 National Bibliography: Asia, Africa, Australia, Oceania |
| 5 0% | 5 0% | 5 | any other Z 1201-5000 |
| 669 4% | 644 7% | 604 | Z 5051-5055 Subject and Personal Bibliography: Academies,Societies |
| 28,770 6% | 27,199 8% | 25,140 | Z 5056-8999 Subject and Personal Bibliography: Other |
| 5 0% | 5 25% | 4 | any other Z 1001-8999 |
| 103 930% | 10 - | - | ZA Information Resources |
| 237 -2% | 242 1% | 239 | any other Z |
| 35 - | 0 - | 0 | other A-Z |
| 35 192% | 12 -57% | 28 | any other A-Z |
| 0 - | 0 - | 0 | QS-ZWZ |
| 0 - | 0 - | 0 | QS Human Anatomy |
| 0 - | 0 - | 0 | QT Physiology |
| 0 - | 0 - | 0 | QU Biochemistry |
| 0 - | 0 - | 0 | QV Pharmacology |
| 0 - | 0 - | 0 | QW Microbiology, Immunology |
| 0 - | 0 - | 0 | QX Parisitology |
| 0 - | 0 - | 0 | QY Clinical Pathology |
| 0 - | 0 - | 0 | QZ Pathology |
| 0 - | 0 - | 0 | W Medical Profession |
| 0 - | 0 - | 0 | WA Public Health |
| 0 - | 0 - | 0 | WB Practice of Medicine |
| 0 - | 0 - | 0 | WC Communicable Diseases |
| 0 - | 0 - | 0 | WD 100 Nutrition Disorders |
| 0 - | 0 - | 0 | WD 200 Metabolic Diseases |
| 0 - | 0 - | 0 | WD 300 Immunological Diseases; Hypersensitivity; Collagen Diseases |
| 0 - | 0 - | 0 | WD 400 Animal Poisoning |
| 0 - | 0 - | 0 | WD 500 Plant Poisoning |
| 0 - | 0 - | 0 | WD 600 Diseases and Injuries caused by Physical Agents |
| 0 - | 0 - | 0 | WD 700 Aviation and Space Medicine |
| 0 - | 0 - | 0 | WE Musculoskeletal System |
| 0 - | 0 - | 0 | WF Respiratory System |
| 0 - | 0 - | 0 | WG Cardiovascular System |
| 0 - | 0 - | 0 | WH Hemic and Lymphatic Systems |
| 0 - | 0 - | 0 | WI Gastrointestinal System |
| 0 - | 0 - | 0 | WJ Urogenital System |
| 0 - | 0 - | 0 | WK Endocrine System |
| 0 - | 0 - | 0 | WL Nervous System |
| 0 - | 0 - | 0 | WM Psychiatry |
| 0 - | 0 - | 0 | WN Radiology |
| 0 - | 0 - | 0 | WO Surgery |
| 0 - | 0 - | 0 | WP Gynecology |
| 0 - | 0 - | 0 | WQ Obstetrics |
| 0 - | 0 - | 0 | WR Dermatology |
| 0 - | 0 - | 0 | WS Pediatrics |
| 0 - | 0 - | 0 | WT Geriatrics, Chronic Disease |
| 0 - | 0 - | 0 | WU Dentistry, Oral Surgery |
| 0 - | 0 - | 0 | WV Otorhinolaryngology |
| 0 - | 0 - | 0 | WW Opthalmology |
| 0 - | 0 - | 0 | WX Hospitals and other health facilities |
| 0 - | 0 - | 0 | WY Nursing |
| 0 - | 0 - | 0 | WZ History of Medicine |
| 0 - | 0 - | 0 | ZQS-ZQZ Bibliography of Preclinical Sciences |
| 0 - | 0 - | 0 | ZSF Bibliography of Veterinary Medicine |
| 0 - | 0 - | 0 | ZW-ZWZ Bibliography of Medicine and Related Subjects |
| 3,144,858 12% | 2,814,442 12% | 2,504,070 | A-Z: NATC Totals |