Year % of female population ages 15+ (national estimate) 1961 18.85 1971 24.52 1975 17.63 1978 34.87 1979 37.72 1980 38.71 1990 50.96 1991 49.69 1992 40.46 1993 42.2 1994 43.59 1995 41.76 1996 40.58 1997 40.77 1998 44.69 1999 44.5 2000 44.3 2001 44.5 2002 43.93 2003 45.82 2004 44.14 2005 44.7 2006 45.83 2007 45.86 2008 47.28 2009 47.59 2010 46.79 2011 46.568 2012 47.377 2013 48.607 2014 47.025 2015 45.981 2016 46.529 2017 45.738 2018 45.494 2019 46.31 2020 45.36 2021 45.409 2022 46.376