Farm and Nonfarm Labor Force, 1940–2005
(number in thousands)
1. Data for persons age 14 and over. Beginning 1950, data relate to persons age 16 and over.
2. Not strictly comparable with data for prior years.
3. Beginning in Jan. 2000, data are not strictly comparable with data for 1999 and earlier years because of the revisions in the population controls used in the household survey.
Source: U.S. Department of Labor, Bureau of Labor Statistics. Web: www.bls.gov/cps/cpsaat1.pdf .