Year	% female
1970	42.43901
1971	42.49747
1972	42.78369
1973	42.82365
1974	42.61714
1975	41.95085
1976	43.14831
1977	42.77428
1978	43.0465
1979	44.25428
1980	43.96598
1981	44.23579
1982	44.58843
1983	44.7789
1984	44.46942
1985	43.34331
1986	43.56146
1987	44.60047
1988	44.56947
1989	44.75592
1990	43.57483
1991	43.20491
1992	42.68724
1993	42.53649
1994	44.12307
1995	44.3459
1996	44.68397
1997	43.9439
1998	44.52265
1999	44.79103
2000	44.61309
2001	44.49993
2002	44.03137
2003	44.181
2004	44.56816
2005	45.54657
2006	45.98994
2007	46.07134
2008	46.05243
2009	46.08439
2010	43.87888
2011	43.73916
2012	43.6696
2013	43.42538
2014	43.43736
2015	43.66004
2016	43.45458
2017	42.72745
2018	42.29874