Year % (national estimate) 2002 56.32 2009 59 2010 66.595 2011 66.02 2012 64.412 2013 62.921 2014 62.18 2015 63.005 2016 62.748 2017 61.543 2018 61.778 2019 61.521 2020 61.745 2021 62.295