Year % (national estimate) 2001 47.95037498102038 2002 48.76394457958991 2003 46.901795100513915 2004 46.83876751564254 2005 46.31378863083366 2006 47.41878596419761 2007 47.585773751988164 2008 46.53838374434427 2009 45.23668940463688 2011 44.60757002719737 2012 44.37233604713477 2013 43.905606752114664 2014 43.47611770487035 2015 43.190062242268866 2016 40.96331904762281 2017 40.52337922278944 2018 40.87179002182465 2019 41.202163090938775 2020 35.38373759856797 2021 40.00618324321092 2022 42.22785811713244 2023 41.610562651011456