Data source note Analysis of arrest data from unpublished FBI reports for 1980 through 1997 and from Crime in the United States reports for 19982001 (Washington, DC: U.S. Government Printing Office, 19992002, respectively); population data from the U.S. Bureau of the Census for 19801989 from U.S. Population Estimates by Age, Sex, Race, and Hispanic Origin: 1980 to 1999 [machine-readable data files available online, released April 11, 2000], for 19901999 from Intercensal Estimates of the United States Resident Population by Age and Sex: 1990 to 2000 [machine-readable data files available online, downloaded November 27, 2002], and for 20002001 from Table USEST2001ASRO02National Population EstimatesCharacteristics [machine-readable data files available online, released January 21, 2003].
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