Year	% of female population ages 15+ (national estimate)
1960	24.9
1970	33.87
1980	49.19
1983	42.69
1986	48.25
1988	49.18
1990	59.5
2000	60.4
2001	58.4
2002	54.8
2004	52.8
2005	55.1
2006	55.6
2007	48.8
2009	53.7
2010	56.4
2011	56.5