Year	% of female population ages 15+ (national estimate)
1961	17.48
1970	29.6
1981	37.6
1983	78.81
1985	25.62
1987	29.15
1989	33.15
1990	33.01
1991	35.1
1992	34.44
1993	36.47
1994	36.2
2001	57.54