About the Collection

The Center boasts the oldest and most comprehensive collection of public opinion survey datasets in the world. The focus of the collection is naturally on surveys from the United States, although many surveys from Europe, Latin America and Asia have been acquired, some dating back to the 1940s and 1950s.

Largest US study collections

(as of 6/6/2007)

Collection	Years	Studies
Gallup Polls (AIPO, personal interviews)	1936-1989	1,086
ABC News and Washington Post	1981-2006	880
CBS News and New York Times Polls	1972-2006	816
Exit Polls (Mitofsky, VRS, VNS, Networks)	1972-2006	734
Gallup Polls (Special survey series)	1954-2007	693
Minnesota Polls	1944-1998	463
CNN/USA Today/Gallup Polls	1992-2006	502
Los Angeles Times Polls	1977-2007	451
PSRA/Newsweek Polls	1992-2007	362
Time Soundings/CNN/Yankelovich Polls	1972-2001	269
NBC News and Wall Street Journal Polls	1984-2007	357
Connecticut Polls	1979-2000	228
National Opinion Research Center Surveys	1941-2006	227
Iowa Polls	1954-1996	219
California Polls (Field Institute)	1956-1996	210
Roper Reports	1973-1994	205

Other Countries

Country	Years	Studies
Great Britain	1938-1995	2,899
France	1954-1995	771
Canada	1942-2000	615
Brazil	1960-2001	555
Germany	1950-1997	492
Mexico	1958-2000	351
Italy	1951-1996	291
Japan	1953-2001	219
Venezuela	1955-2000	124
Argentina	1961-2001	123

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