These estimates were compiled from information collected in the March 1995 Current Population Survey (CPS) conducted by the Bureau of the Census. The survey consisted of about 60,000 households nationwide and was designed to produce reliable national estimates, although some data by region and state were also compiled.
As will all sample surveys the data are subject to sampling variability and errors of response, including underreporting and nonreporting. These data are limited to money income received before payments for personal income taxes, and deductions for social security, medicare, union dues, and so forth. For further information on the source and accuracy of estimates see appendix E, Current Population Reports, Series P60-188, "Income, Poverty, and Valuation of Noncash Benefits: 1993.”