Year % of female population ages 15+ (national estimate) 2005 21.095567766770774 2006 18.662768429035868 2007 19.391818709250106 2008 18.682800121064787 2009 17.783154197190466 2010 18.386532842884325 2011 19.093822291104317 2012 18.820172784095544 2013 19.11519970875295 2014 17.30566120595248 2015 19.456769154483617 2016 19.51897649915725 2021 14.722083229463722