Year % (national estimate) 1982 71.708 1990 65.69 1994 68.43 1995 62.66 1998 62.91 1999 67.9 2000 68.1 2001 68.08 2002 68.24 2003 68.06 2004 69.35 2005 67.92 2006 50.13 2007 69.96 2008 69.85 2009 49.43 2010 68.04 2011 68.03 2012 67.23 2013 66.39 2014 65.71 2015 65.18 2016 64.76 2021 62.7 2022 62.4