Appendix A  Social and Economic Characteristics of the United States,,,,,,,,,,,
,1980,1985,1990,1995,2000,2001,2002,2003,2005,,
Total U.S. Resident Population (thousands),"227,225","237,924","249,623","266,278","282,193","285,102","287,941","290,789","296,410",,
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Population by age (thousands),,,,,,,,,,,
Under 18,"63,754","62,623","63,949","69,465","72,307","72,610","72,864","73,050","73,470",,
18-24 years,"30,022","28,902","26,961","25,482","27,141","27,968","28,442","28,924","29,307",,
25-34 years,"37,082","41,696","43,174","45,052","39,895","39,666","39,717","39,842","40,143",,
35-44 years,"25,634","31,691","37,444","42,711","45,150","45,122","44,782","44,396","43,863",,
45-54 years,"22,800","22,460","25,062","31,480","37,674","39,371","39,968","40,802","42,483",,
55-64 years,"21,703","22,135","21,116","21,320","24,273","25,037","26,582","27,832","30,356",,
65 and over,"25,550","28,415","31,084","33,769","34,992","35,328","35,585","35,943","36,790",,
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Population by sex (thousands),,,,,,,,,,,
Male,"110,053","115,730","121,284","130,215","138,056","140,013","141,519","143,024","146,000",,
Female,"116,493","122,194","127,507","136,063","143,368","145,089","146,422","147,765","150,411",,
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Population in Metropolitan areas (millions) ,,,,,,,,,
Large (over 1 million),119,U,139,147,149,152,154,156,U
"Medium (250,000-999,999)",41,U,41,44,56,57,58,57,U
"Small (less than 250,000)",17,U,18,19,28,27,28,28,U
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Population in Regions (millions),,,,,,,,,
Northeast,49.1,49.9,50.8,52.3,53.6,53.9,54.2,54.4,54.6
South,75.4,81.4,85.5,93.2,100.2,101.8,103.2,104.5,107.5
Midwest,58.9,58.8,59.7,62.5,64.4,64.8,65.1,65.4,66.0
West,43.2,47.8,52.8,58.3,63.2,64.5,65.5,66.4,68.3
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Immigrants admitted (thousands),531,570,"1,536",720,841,"1,064","1,064",706,"1,122"
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"Gross domestic product 
(chained $ 2000 billions)","5,162","6,054","7,113","8,032","9,817","9,891",,,"11,135"
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Civilian labor force (thousands),"106,940","115,461","125,840","132,304","142,583","143,734","144,863","146,510","149,320",,
Participation rate of men (%),77.4,76.3,76.4,75.0,74.8,,,,73.3,,
Participation rate of women (%),51.5,54.5,57.5,58.9,59.9,,,,59.3,,
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Unemployment rate (% of labor force),7.1,7.2,5.6,5.6,4.0,4.7,5.8,6.0,5.1,,
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Households (thousands),"80,776","86,789","93,347","98,990","104,705","108,209","109,297","111,278","113,343",,
Average size of households,2.76,2.69,2.63,2.65,2.62,2.58,2.58,2.57,2.57,,
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Median household income  (constant $ 2005) ,"39,739","40,868","43,366","43,346","47,599","45,062","44,546","44,482","46,326",,
Average household expenditures  (constant $ 2004) ,U,"41,238","41,019","39,991","41,735","42,151","42,712","41,904",U,,
KEY: U= data are unavailable.,,,,,,,,,,,
"NOTES: Resident population estimates are as of July 1 except 1980, 1990, and 2000, which are as of April 1. New metropolitan area definitions were published by the Office of Budget and Management (OMB) in 2003. These definitions were applied to population data by the Census Bureau beginning with the data from the 2000 Census. A new term, core based statistical areas (CBSAs), collectively refers to metropolitan and micropolitan statistical areas. A metropolitan statistical area is defined as having at least one urbanized area of 50,000 or more inhabitants. A micropolitan statistical area is defined as having at least one urban cluster of more than 10,000 but less than 50,000 inhabitants.
Number of immigrants is based on fiscal year data ending September 30.
Median household income and average household expenditures were converted to constant 2004 dollars using the CPI-U-RS price index.",,,,,,,,,,,
"SOURCES: U.S. resident population—U.S. Census Bureau, Statistical Abstract of the United States 2006 (Washington, DC: 2006), table 2.  Population by age, Population by sex—U.S. Census Bureau, Statistical Abstract of the United States (Washington, DC: various years), table 11.  Population by metropolitan area— 2000-04: U.S. Census Bureau, Population Division, Annual Estimates of the Population of Metropolitan and Micropolitan Statistical Areas (Washington, DC: January 2006), table 1, Internet site http://www.census.gov/population/www/estimates/Estimates%20pages_final.html as of Mar. 7, 2006.  Population in regions— U.S. Census Bureau, Statistical Abstract of the United States 2006 (Washington, DC: 2006), table 17.
Number of immigrants admitted—U.S. Census Bureau, Statistical Abstract of the United States  (Washington, DC: various years), table 5. ",,,,,,,,,,,
"Gross Domestic Product— U.S. Census Bureau, Statistical Abstract of the United States 2006 (Washington, DC: 2006), table 650.  
Civilian Labor Force, Unemployment Rate— U.S. Census Bureau, Statistical Abstract of the United States 2006 (Washington, DC: 2006), table 576.  Participation of Men and Women—",,,,,,,,,,,
"Number of households, Average size of households—U.S. Department of Commerce, Bureau of the Census, Current Population Survey, Table HH-6, Average Population Per Household and Family: 1940 to Present, Internet site http://www.census.gov/population/socdemo/hh-fam/hh6.pdf as of August 2006. ",,,,,,,,,,,
"Median household income— U.S. Department of Labor, Bureau of the Census, Current Population Survey, Table H-5, Race and Hispanic Origin of Householder--Households by Median and Mean Income: 1967 to 2004, Internet site http://www.bls.gov/cex/2004/standard/multiyr.pdf as of Jan. 16, 2006.  Average household expenditures— U.S Department of Labor, Bureau of Labor Statistics, Consumer Expenditure Survey, Average Annual Expenditures, All Consumer Units, Internet site http://www.bls.gov/data/home.htm as of Mar. 7 2006.",,,,,,,,,