Year	% female
1971	15.4077596664429
1972	15.4307498931885
1973	15.5616598129272
1974	15.6595602035522
1975	15.8831996917725
1976	16.2313098907471
1977	16.790599822998
1978	17.0411796569824
1979	17.7638301849365
1980	17.7610092163086
1981	18.1356906890869
1982	18.287769317627
1983	18.7052993774414
1984	19.0501708984375
1985	20.2870101928711
1986	20.6525897979736
1987	20.7149600982666
1988	21.6206398010254
1989	22.6502704620361
1990	23.6004505157471
1991	24.6546802520752
1992	25.6958198547363
1993	26.6710605621338
1994	27.6233806610107
1995	28.5566596984863
1996	29.7425098419189
1997	30.7956104278564
1998	32.0742797851562
1999	33.3186111450195
2000	34.5385398864746
2001	34.5285491943359
2002	34.4505081176758
2003	34.3257293701172
2004	37.2042083740234
2005	36.7109603881836
2006	36.6320381164551
2007	36.8872413635254
2008	37.2201881408691
2009	37.2078895568848
2010	36.958869934082
2011	37.0597305297852
2012	36.814868927002
2013	36.6073303222656
2014	36.40380859375
2015	36.3378982543945
2016	36.9951095581055
2017	38.3482513427734
2018	39.1755409240723
2019	39.1042404174805
2020	39.5898094177246
2021	39.9609107971191
2022	40.4890098571777