Year	% female
1971	40.96149
1976	39.79906
1981	42.14125
1982	43.18244
1983	42.97033
1984	43.06389
1985	44.76341
1986	44.21213
1987	43.79679
1988	44.16393
1989	44.95342
1990	44.43837
1991	44.60697
1992	44.35142
1993	44.49307
1994	44.54496
1995	44.35319
1996	44.60599
1997	44.83343
1998	42.861
1999	43.08438
2000	43.47476
2001	43.84391
2002	43.34205
2003	43.14392
2004	43.32953
2005	43.73133
2006	44.20797
2007	44.09333
2008	43.84884
2009	43.69552
2010	43.94006
2011	43.92012
2012	43.93113
2013	44.25783
2014	44.11883
2015	44.03472
2016	43.84681
2017	43.50362