Table with row headers in column A and column headers in rows 8 through 9.,,,,,, Census 2000 PHC-T-35. Working at Home: 2000,,,,,, ,,,,,, Table 1-5. Class of Worker for Workers Who Worked at Home for the United States: 1980 to 2000,,,,,, ,,,,,, ,,,,,, "(Data are based on a sample. For information on confidentiality protection, sampling error, nonsampling error, and definitions, see www.census.gov/prod/cen2000/docs/sf3.pdf.)",,,,,, Class of Worker,2000,,1990,,1980, ,Number,Percent,Number,Percent,Number,Percent ,,,,,, Workers 16 years and over,"4,184,223",100.0,"3,406,025",100.0,"2,179,863",100.0 ,,,,,, Private wage and salary 1/,"1,984,270",47.4,"1,236,843",36.3,"731,660",33.6 Federal government 2/,"51,158",1.2,"125,680",3.7,"30,194",1.4 State and Local government,"125,816",3.0,"73,308",2.2,"60,707",2.8 Self employed 3/,"1,910,919",45.7,"1,828,470",53.7,"1,230,106",56.4 Unpaid family workers,"112,060",2.7,"141,724",4.2,"127,196",5.8 Footnotes:,,,,,, "1/ Includes Census 2000 categories of private for profit, self employed in own incorporated business, and private not for profit.",,,,,, "2/ Armed Forces personnel who were on ships at sea during the census were enumerated as working at home in 1990, but not in 1980 or 2000.",,,,,, 3/ Census 2000 category entitled self employed workers in own not incorporated business.,,,,,, "Source: Census 2000 and 1980 to 1990 Censuses of Population, U.S. Census Bureau",,,,,, "Internet Release Date: October 20, 2004",,,,,,