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This was the highest turnout in a presidential election year since
1
People in the military, U.S. citizens living abroad, and people in institutionalized housing, such as correctional institutions and nursing homes, were not included in the survey. For a discussion of the differences between the official counts of votes cast and the CPS data, see the section 
Measuring Voting in the Current Population Survey
2
The estimates in this report (which may be shown in text, figures, and tables) are based on responses from a sample of the population and may
1992, when 68 percent of voting-age citizens voted. 3
The overall number of people who voted in the November 2004 election was 126 million, a record high for a presidential election year. Voter turnout increased by 15 million voters from the election in 2000. During this same 4-year period, the voting-age citizen population increased by 11 mil- lion people. The registration rate of the voting-age citizen population, 72 percent, was higher than the 70 percent registered in the 2000 election. The last presidential election year to have a higher registra- tion rate was 1992, when 75 percent of voting-age citizens were registered to
differ from actual values because of sampling vari- ability or other factors. As a result, apparent differ- ences between the estimates for two or more groups may not be statistically significant. All comparative statements have undergone statistical testing and are significant at the 90-percent confidence level unless otherwise noted. 3
Additional information about historical voting and registration data is available at <www.census.gov /population/www/socdemo/voting.html>.