Year	% female
1970	52.42705
1971	52.42415
1972	52.41519
1973	52.6573
1974	52.37358
1975	53.3766
1976	53.1015
1977	52.37374
1978	52.15033
1979	52.03682
1980	52.19208
1981	52.17016
1982	52.27593
1983	52.09818
1984	51.86866
1985	51.73753
1986	52.17508
1987	51.48107
1988	51.50968
1989	51.97737
1990	51.56952
1991	51.48663
1992	51.32669
1993	51.20142
1994	51.16079
1995	51.12613
1996	51.23526
1997	51.29615
1998	51.26645
1999	51.12205
2000	51.30898
2001	51.25858
2002	51.33585
2003	51.04561
2004	50.82632
2005	50.99744
2006	51.12808
2007	51.16545
2008	51.06555
2009	50.65189
2010	51.35627
2011	51.16714
2012	51.212
2013	51.22766
2014	51.18963
2015	51.18729
2016	51.01233
2017	51.14434
2018	50.95367