Year	% of female population ages 15+ (national estimate)
1960	22.74
1970	21.66
1980	26.25
1981	26.79
1982	27.37
1983	28.35
1984	28.68
1985	29.8
1986	29.59
1988	31.19
1989	31.64
1990	31.76
1991	31.29
1992	33.41
1993	34.89
1994	35
1995	33.93
1996	36.826
1997	37.557
1998	37.915
1999	38.148
2000	37.752
2001	36.778
2002	36.499
2003	37.844
2004	39.256
2005	40.174
2006	41.331
2007	42.28
2008	44.233
2009	44.669
2010	46.844
2011	48.936
2012	49.178
2013	49.622
2014	50.282
2015	50.313
2016	50.738
2017	51.849
2018	52.515
2019	52.743
2020	45.531
2021	46.665
2022	50.104
2023	52.038