Year % (national estimate) 1994 59.955 1995 60.219 1996 61.66 1997 60.727 1998 59.273 1999 56.486 2000 54.728 2001 54.67 2002 55.194 2003 56.173 2004 56.344 2005 57.761 2006 59.881 2007 61.067 2008 62.574 2009 60.366 2010 58.194 2011 58.793 2012 59.13 2013 58.617 2014 60.976 2015 60.899 2016 62.132 2017 62.379 2018 63.66 2019 63.809 2020 62.365 2021 61.897 2022 63.259 2023 63.457