Year	% of female population ages 15+ (national estimate)
1960	17.72
1970	17.87
1977	27.85
1978	27.68
1979	27.56
1980	27.19
1981	26.81
1982	27.23
1983	27.82
1984	27.73
1985	27.81
1986	27.666
1987	30.285
1988	31.736
1989	32.028
1990	32.634
1991	32.6
1992	34.596
1993	35.122
1994	36.344
1995	36.802
1996	37.321
1997	38.076
1998	38.418
1999	39.12
2000	40.703
2001	39.564
2002	42.126
2003	43.62
2004	45.009
2005	46.493
2006	47.932
2007	48.979
2008	50.348
2009	51.456
2010	52.179
2011	52.809
2012	53.454
2013	53.396
2014	53.119
2015	53.119
2016	53.038
2017	52.647
2018	52.436
2019	52.691
2020	51.618
2021	53.065
2022	53.218
2023	53.351