Year	% of female population
1960	0.887730907493899
1961	0.889296509799308
1962	0.890274955030719
1963	0.890937438918511
1964	0.892193801740607
1965	0.8933661166216
1966	0.894337190027293
1967	0.895127388210865
1968	0.895703748854643
1969	0.896123530022735
1970	0.89661875478963
1971	0.897457083863751
1972	0.898754336366218
1973	0.899918329329701
1974	0.913333067443067
1975	0.938039114522032
1976	0.960866608830219
1977	0.981787783609914
1978	1.00018329117636
1979	1.01651535980955
1980	1.03038483062844
1981	1.04061583247278
1982	1.04779223440221
1983	1.0542812718612
1984	1.04960899024324
1985	1.03413567998159
1986	1.01866574413494
1987	1.00322124483597
1988	0.990334165809001
1989	0.985841086176262
1990	0.99057757209066
1991	1.00323251614886
1992	1.02042881593826
1993	1.03043577590124
1994	1.03218291715885
1995	1.03466077696505
1996	1.03626221010437
1997	1.0324479344281
1998	1.02554011755232
1999	1.01895352553677
2000	1.01314250572428
2001	1.00749322251219
2002	1.00174173742677
2003	0.985682133552066
2004	0.959838188572924
2005	0.934439532316875
2006	0.909469439635336
2007	0.884398164391181
2008	0.860324326202326
2009	0.839754671783727
2010	0.823121793620806
2011	0.809800880580392
2012	0.800767444208826
2013	0.795238648598322
2014	0.791739115456931
2015	0.78913140029186
2016	0.785554069154647
2017	0.776948348520526
2018	0.75687072821974
2019	0.722410131735711
2020	0.686109793023288
2021	0.658428025699495
2022	0.640896932093903
2023	0.639880551801862