Year	% female
1972	28.66275
1973	27.82939
1974	25.97259
1975	23.57332
1976	31.70445
1977	34.3077
1978	33.94998
1979	33.9883
1980	35.2528
1981	31.5348
1982	32.15316
1983	33.13033
1984	34.5646
1985	37.03003
1986	37.24279
1987	39.08448
1988	39.07951
1989	39.2013
1990	39.0452
1991	38.28437
1992	39.94981
1993	38.16266
1994	48.454
1995	47.0967
1996	45.6254
1997	39.02769
2000	54.82111
2001	49.29949
2002	38.09703
2005	39.38975
2006	38.73606
2008	36.46698
2009	34.98364
2010	33.68636
2011	32.46498
2016	36.70839