Year % of total population ages 15+ (national estimate) 1998 59.22 2000 61.9 2002 37.07 2003 60.108 2004 58.54 2005 57.86 2006 59.961 2007 60 2008 58.395 2009 58.47 2010 59.363 2011 60.59 2012 60.668 2013 59.488 2014 60.091 2015 59.816 2016 58.726 2017 59.558 2018 59.473 2019 62.947 2020 60.877 2021 58.669 2022 60.542