Year % of total population ages 15+ (national estimate) 2000 43.93 2002 52.8 2003 50.3 2004 49.5 2005 48.7 2006 52.5 2007 46.5 2008 46 2009 48.1 2012 33.481 2013 36.546 2014 37.158 2015 33.484 2016 34.124 2017 37.232 2018 36.252 2019 35.696 2020 33.658 2021 34.573 2022 34.035