Year	% female
1971	48.68674
1972	48.78247
1973	48.70149
1974	48.60928
1975	48.50119
1976	48.2453
1977	47.89635
1978	47.88984
1979	47.23102
1980	47.87643
1981	47.89863
1982	49.07724
1983	49.07801
1984	49.08002
1985	47.61755
1986	47.65161
1987	47.59559
1988	45.94105
1990	47.73828
1991	47.5904
1992	47.80673
1993	47.68459
1994	47.50089
1995	47.61928
1996	47.56259
1998	47.69424
1999	47.72905
2000	47.72625
2001	48.40028
2002	47.84235
2003	47.5113
2004	47.52108
2005	47.62594
2006	47.63442
2007	47.47454
2008	47.42343
2009	47.95579
2010	48.04973
2011	48.07739
2012	48.08358
2013	47.91204
2014	47.74508
2015	47.87332
2016	47.96418
2017	48.11418