Year	% of female population
1960	0.446506925771734
1961	0.423256096983793
1962	0.400140766132711
1963	0.377128418511977
1964	0.351075053661731
1965	0.351793208810635
1966	0.384748131425435
1967	0.4277834681682
1968	0.476688448533042
1969	0.526226359718454
1970	0.572945570170834
1971	0.589108743283048
1972	0.571673109036528
1973	0.547343420048127
1974	0.523741820548837
1975	0.502999519584132
1976	0.486981032541514
1977	0.470454974513876
1978	0.45005707245484
1979	0.427107953536781
1980	0.408107239467552
1981	0.404672776558668
1982	0.411611110072476
1983	0.417528998411705
1984	0.420459458596786
1985	0.418432277463114
1986	0.411774375668662
1987	0.406320424546427
1988	0.403120871201505
1989	0.39871311239993
1990	0.392901669715577
1991	0.390470185552153
1992	0.394952274785759
1993	0.405552594377882
1994	0.417809965828531
1995	0.428014487252483
1996	0.437705144329581
1997	0.446976858433757
1998	0.45160847100341
1999	0.450187460872379
2000	0.44660064446169
2001	0.443653201608117
2002	0.445596667996156
2003	0.461500017397191
2004	0.48969018196612
2005	0.512291491756382
2006	0.521115384564707
2007	0.519789003431303
2008	0.511420911276167
2009	0.502194802066326
2010	0.507783180497993
2011	0.524583867954996
2012	0.548947153091514
2013	0.580826711072701
2014	0.612472661038846
2015	0.632826873285713
2016	0.628760193415572
2017	0.606183568138044
2018	0.58630168066546
2019	0.58935873133623
2020	0.604625528912697
2021	0.617454238608334
2022	0.638443380223344
2023	0.675439083914795