• Annual CPI, 1800-1912, copied from Historical Statistics of the United States
• Monthly CPI, 1913-June 1998, using Bureau of Labor Statistics tabulation
• Both use the base 1967=100
• Updates to the 1967 base year were suspended after June 1998;
• Historic CPI Data (Base=1982-84) is available on the BLS web site on a monthly basis since 1913

 

The Bureau of Labor Statistics began calculating the Consumer Price Index in 1913. Estimates dating back to 1800 appear in Historical Statistics of the United States to 1970, Table E135-166. The base year is 1967. Because the base year of the CPI changes, we have also downloaded the most current data from the Bureau of Labor Statistics web site available as of March 1999. Since July 1998, historic CPI data is only calculated using the 1982-84 base year.