Year % (national estimate) 2000 52.034 2001 54.155 2002 52.23 2003 53.045 2004 48.88 2005 46.746 2006 47.508 2007 48.906 2008 48.032 2009 45.782 2010 45.878 2011 48.022 2012 47.14 2013 48.23 2014 46.136 2015 46.61 2016 48.885 2017 48.467 2018 49.477 2019 50.73 2020 48.188 2021 47.789 2022 51.035 2023 50.516