April 8, 2016

Year Legal in all/most cases Illegal in all/most cases
1995 60% 38%
1996 57% 40%
1997
1998 54% 42%
1999 56% 42%
2000 53% 43%
2001 54% 43%
2002
2003 57% 42%
2004 55% 43%
2005 57% 41%
2006 51% 43%
2007 52% 42%
2008 54% 40%
2009 47% 44%
2010 50% 44%
2011 53% 42%
2012 54% 39%
2013 54% 40%
2014 55% 40%
2015 51% 43%
2016 56% 41%

Pew Research Center