Year	% female
1978	47.66926
1979	47.58623
1980	48.12797
1981	48.54372
1982	48.61093
1983	48.34358
1984	48.40743
1985	48.40708
1986	48.70243
1987	48.78543
1988	48.9898
1989	49.07405
1990	49.42705
1991	49.20795
1992	49.31316
1993	49.50022
1994	49.51475
1995	49.50054
1996	49.48759
1998	50.03491
1999	50.32351
2000	50.06371
2001	50.10747
2002	50.04821
2003	50.07329
2004	49.83168
2005	49.48016
2006	49.3802
2007	49.39092
2008	49.38899
2009	49.20206
2010	48.9418
2011	49.11455
2012	48.99678
2013	49.27244
2014	49.60066
2015	49.68921
2016	49.28619
2017	48.97225