Year	% of female population
1960	19.1029800224571
1961	19.0620300655046
1962	19.0138653431939
1963	18.9623780372714
1964	18.9138098291158
1965	18.8748382489252
1966	18.8375310411007
1967	18.794933120737
1968	18.7558753137006
1969	18.7216645408495
1970	18.6893382459015
1971	18.6747829411203
1972	18.6896741713144
1973	18.7123801059044
1974	18.7053826459258
1975	18.7089496972375
1976	18.7372962535545
1977	18.7414577521484
1978	18.7261100239602
1979	18.7018887400806
1980	18.646776046399
1981	18.5509285975209
1982	18.4301744194811
1983	18.2904659937427
1984	18.1253402147718
1985	17.9388902736628
1986	17.7467613713008
1987	17.5550267206154
1988	17.3593794905968
1989	17.1728147034692
1990	17.008857930409
1991	16.8610919830955
1992	16.7333148211823
1993	16.6248168034644
1994	16.5206346641913
1995	16.4035798325141
1996	16.269213988157
1997	16.1171667233455
1998	15.9335086669005
1999	15.7488914424334
2000	15.5775255671209
2001	15.3839989271365
2002	15.1563260251266
2003	14.8827747850366
2004	14.5547915652475
2005	14.1936143770444
2006	13.826596685562
2007	13.4639985875867
2008	13.1123800371054
2009	12.7731669507808
2010	12.4436688855898
2011	12.1243212880604
2012	11.8199729620231
2013	11.5336905953979
2014	11.2694041866171
2015	11.0330105373754
2016	10.8269967107812
2017	10.6502682124154
2018	10.498782106346
2019	10.3662649037403
2020	10.2470909846854
2021	10.1366880498494
2022	10.029395961344
2023	9.91216790158566