U.S. adults | |
---|---|
3/21/2005 | 5% |
12/8/2005 | 8% |
8/31/2006 | 11% |
5/11/2008 | 21% |
8/10/2008 | 26% |
8/31/2008 | 25% |
12/4/2008 | 27% |
12/20/2008 | 26% |
4/19/2009 | 36% |
9/14/2009 | 37% |
12/27/2009 | 42% |
1/19/2010 | 43% |
5/30/2010 | 48% |
9/13/2010 | 46% |
11/24/2010 | 45% |
11/28/2010 | 46% |
12/21/2010 | 47% |
5/22/2011 | 50% |
8/26/2011 | 50% |
2/19/2012 | 53% |
8/7/2012 | 59% |
12/9/2012 | 54% |
5/19/2013 | 61% |
7/14/2013 | 60% |
9/30/2013 | 63% |
1/26/2014 | 62% |
7/12/2015 | 65% |
11/6/2016 | 69% |
1/10/2018 | 69% |
2/7/2019 | 72% |
2/8/2021 | 72% |
- Report
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