Year	% female
1970	48.91321
1971	48.92237
1972	49.00847
1973	48.91509
1974	48.84249
1975	48.93178
1976	48.82978
1977	48.80472
1978	48.62239
1979	48.64394
1980	48.58492
1981	48.49232
1982	48.5418
1983	48.43136
1984	48.3568
1985	48.4244
1986	48.40635
1987	48.41433
1988	48.48946
1989	48.44469
1990	48.54057
1991	48.61846
1992	48.59367
1993	48.59967
1994	48.58867
1995	48.60888
1996	48.6696
1997	48.50068
1998	48.5153
1999	48.2744
2000	48.1269
2001	48.4972
2002	48.12918
2004	48.3085
2005	48.25056
2006	48.34981
2007	48.38546
2008	48.42357
2009	48.37087
2010	48.37777
2011	48.42207
2012	48.47772
2013	48.53736
2014	48.63
2015	48.70302
2016	48.98793
2017	49.12335
2018	49.0634