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The Census Bureau used two different forms to collect Census 2000 data: the 100-percent or short-form, which consists of seven population and housing questions answered by all the households, and the sample data or long-form, which includes the seven basic questions plus additional inquiries answered by approximately one of six households. Census 2000 and 1990 questionnaires are available online at: http://www.census.gov/dmd/www/2000quest.html