Year	% of female population
1960	0.745740475409553
1961	0.712282192945176
1962	0.676219880528895
1963	0.650866994584389
1964	0.644025239267605
1965	0.664648697128397
1966	0.709632753249205
1967	0.766544060828981
1968	0.828565792069441
1969	0.884744853883047
1970	0.93080022350969
1971	0.969310062082699
1972	1.00168411803471
1973	1.03344000469745
1974	1.08169362315855
1975	1.15574555907717
1976	1.24692322431353
1977	1.33929227738493
1978	1.42522337776476
1979	1.50609436052954
1980	1.57735115290294
1981	1.64458458690118
1982	1.71359335333487
1983	1.78738334555599
1984	1.87702731925323
1985	1.97498545666085
1986	2.07657651047093
1987	2.18038541867251
1988	2.27762158281988
1989	2.37469806763285
1990	2.46847779740513
1991	2.52001275955828
1992	2.52038104338997
1993	2.51231311108838
1994	2.50332394527285
1995	2.48749266329411
1996	2.47221994703361
1997	2.45447875675315
1998	2.42603086726033
1999	2.38604490323903
2000	2.33851185609158
2001	2.29796822959872
2002	2.27784026996625
2003	2.26112415011251
2004	2.24055756472589
2005	2.22703957733632
2006	2.19594990050334
2007	2.16085047376935
2008	2.15001082411385
2009	2.15064631694799
2010	2.15422140916902
2011	2.14639817495832
2012	2.1326988472779
2013	2.13144254911046
2014	2.15196372037306
2015	2.18741704273958
2016	2.22735713682789
2017	2.25668034033803
2018	2.27718639115007
2019	2.30814756362202
2020	2.35708312254148
2021	2.41538951107096
2022	2.47442886017027
2023	2.54028205050105