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 7/17/2008)

Collection	Years	Studies
Gallup Polls (AIPO, USA Today, CNN, etc.)	1936-present	2,370
ABC News and Washington Post	1981-present	880
CBS News and New York Times Polls	1972-present	860
Exit Polls (Mitofsky, VRS, VNS, Networks)	1972-present	734
Minnesota Polls	1944-1998	463
Los Angeles Times Polls	1977-present	460
PSRA/Newsweek Polls	1992-present	380
Time Soundings/CNN/Yankelovich Polls	1972-2001	269
NBC News and Wall Street Journal Polls	1984-present	365
Connecticut Polls	1979-2000	228
National Opinion Research Center Surveys	1941-present	228
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	2,980
France	1954-1995	825
Canada	1942-2000	626
Brazil	1960-2001	564
Germany	1950-1997	566
Mexico	1958-2000	365
Italy	1951-1996	333
Japan	1953-2001	260
Venezuela	1955-2000	126
Argentina	1961-2001	123

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