Year	% of female population ages 15+ (national estimate)
1963	52.86
1970	57
1979	32.75
1980	57.51
1989	47.07
1990	64.55
1991	68.5
1992	69.9
1993	69.5
1994	66.99
1995	69.5
1996	68.2
1997	70.5
1998	65.86
1999	70.9
2001	71.1
2002	71.9
2009	69.1
2011	69.99
2012	69.07
2013	69.8