Year % of total population ages 15+ (national estimate) 2000 40.254 2001 36.626 2002 35.907 2003 38.759 2004 38.222 2005 38.642 2006 38.63 2007 39.918 2008 39.376 2009 39.53 2010 39.997 2011 41.362 2012 41.679 2013 41.801 2014 42.118 2015 43.967 2016 43.769 2017 44.004 2018 43.452 2019 44.271 2020 40.936 2021 43.367 2022 44.991