Year	% female
1970	49.71665
1971	49.41375
1972	49.60248
1973	49.63229
1974	49.8823
1975	49.0435
1976	49.58858
1977	49.69395
1978	49.53289
1979	49.6055
1980	49.58335
1981	49.34839
1982	49.3559
1983	49.60447
1984	49.66848
1985	49.63039
1986	50.04023
1988	49.54889
1990	49.62478
1991	49.72172
1992	49.65022
1993	49.53592
1994	49.51274
1995	49.51006
1996	49.85333
1997	49.77829
1998	50.31923
1999	49.70343
2000	49.61874
2003	48.92277
2004	49.02232
2005	49.09418
2006	49.04831
2007	49.12757
2008	49.03873
2009	49.01012
2010	49.01169
2011	48.92779
2012	48.86997
2013	48.74286
2014	48.59266
2015	48.83398
2016	48.86704
2017	48.96619