Editing Current Population Survey (section)

==CPS Annual Social and Economic Supplement (ASEC)- the March Supplement==
Since 1948, the CPS has included supplemental questions (at first, in April; later, in March) on income received in the previous calendar year, which are used to estimate the data on income and work experience.  These data are the source of the annual Census Bureau report on income, poverty, and health insurance coverage.

Other regular or occasional survey supplement topics, in various months and years, have included after-tax money income, benefits that are not cash, displaced workers, job tenure, occupational mobility, temporary and contingent work, adult education, volunteering, tobacco use, food availability, fertility, and information about veterans.