| Date of Legalization | State | % Correct |
|---|---|---|
| June 16, 2008 | California | 97%
|
| June 24, 2011 | New York | 94%
|
| Feb. 14, 2012 | Washington | 90%
|
| Dec. 29, 2012 | Maine | 84%
|
| May 19, 2014 | Oregon | 84%
|
| Sept. 1, 2009 | Vermont | 82%
|
| May 17, 2004 | Massachusetts | 79%
|
| Jan. 1, 2010 | New Hampshire | 79%
|
| Aug. 1, 2013 | Rhode Island | 77%
|
| Nov. 12, 2008 | Connecticut | 76%
|
| Oct. 21, 2013 | New Jersey | 74%
|
| May 20, 2014 | Pennsylvania | 72%
|
| June 1, 2014 | Illinois | 71%
|
| Mar. 1, 2012 | Maryland | 71%
|
| July 1, 2013 | Delaware | 69%
|
| Dec. 2, 2013 | Hawaii | 58%
|
| Aug. 1, 2013 | Minnesota | 57%
|
| Dec. 19, 2013 | New Mexico | 46%
|
| Apr. 24, 2009 | Iowa | 45%
|
| Mar. 3, 2010 | Washington D.C. | 24%
|