Year	% female
1970	42.83857
1971	50.99752
1972	50.32616
1974	44.2513
1975	70.44951
1976	75.06331
1977	46.32438
1978	45.90803
1979	46.51851
1980	45.49794
1981	46.13238
1982	46.26993
1985	46.76082
1991	47.62997
1995	47.63208
1998	47.88807
1999	47.73733
2000	47.51093
2001	47.53207
2002	47.50453
2003	47.73771
2004	48.68798
2005	48.61715
2006	48.88078
2007	48.89008
2008	48.99066
2009	48.69097
2010	48.86889
2011	48.80347
2012	48.26522
2013	48.59585
2014	48.6534
2015	48.77564
2016	48.74217
2017	48.77511
2018	48.8549