Year % of female population ages 15+ (national estimate) 1961 25.53 1970 28.13 1977 28.74 1979 30.21 1980 30.68 1981 28.49 1983 36.293 1984 36.073 1985 36.462 1986 36.941 1987 36.557 1988 36.45 1989 36.211 1990 36.552 1991 38.006 1992 38.901 1993 39.576 1994 40.165 1995 40.531 1996 40.552 1997 41.004 1998 41.659 1999 43.171 2000 43.649 2001 41.867 2002 42.573 2003 42.949 2004 44.248 2005 45.692 2006 45.822 2007 46.526 2008 46.91 2009 46.95 2010 47.711 2011 47.032 2012 47.1 2013 47.769 2014 48.078 2015 48.009 2016 47.777 2017 48.719 2018 49.521 2019 49.833 2020 49.328 2021 50.03 2022 50.804 2023 50.685