Year	% female
1971	49.38231
1972	49.4781
1973	49.41729
1974	49.23744
1975	48.24212
1976	47.7707
1977	47.91451
1978	47.80304
1979	47.6771
1980	47.45726
1981	47.83691
1982	47.61824
1983	47.83665
1984	47.88879
1985	47.75494
1986	44.40077
1988	47.12852
1993	48.75811
1994	47.56378
1995	47.36981
1996	48.84581
1997	49.19144
1998	47.68913
1999	48.81351
2000	48.74521
2001	48.38488
2002	48.34849
2003	49.60839
2004	48.61875
2005	48.70728
2007	48.72934
2008	47.69697
2009	47.45524
2010	47.98361
2013	47.7371
2014	48.30411
2015	47.79472
2016	47.87057
2017	47.40048
2018	48.21523