Year	% female
1970	14.08269
1971	13.74349
1972	14.00464
1973	14.54673
1974	14.44661
1975	15.02422
1976	15.42992
1977	16.04606
1978	16.45924
1980	18.06618
1981	18.47081
1982	32.38347
1984	30.97858
1985	31.39768
1986	33.86037
1988	32.14149
1989	33.26159
1990	34.00202
1991	33.8417
1993	24.52793
1994	31.67316
1995	32.02797
1999	7.32191
2000	0
2001	0
2002	30.17938
2003	34.76495
2004	29.1264
2005	35.68696
2006	37.23035
2007	36.89484
2008	37.78309
2009	38.57131
2010	39.34104
2011	40.47591
2012	40.71588
2013	40.11072
2014	39.95768
2015	39.38989
2016	39.35422
2017	39.26577
2018	38.95507