Year	% of female population ages 15+ (national estimate)
1965	2.44
1971	6.2
1979	8.62
1981	18.24
1985	17.17
1987	17.84
1990	28
1991	29.24
1992	29.7
1993	30.4
1994	31.1
1995	31.7
1996	32.4
1997	33.1
1998	33.7
1999	34.4
2000	35.1
2001	35.51
2002	36.4
2003	37.1
2004	37.2
2005	26.38
2006	39.13
2010	43.68
2011	42.54
2015	43.54