Year	% female
1970	40.13822
1971	41.15695
1972	41.53912
1973	40.42335
1974	41.80382
1975	43.43497
1976	58.64149
1977	48.64395
1978	46.12442
1979	48.45824
1981	42.43523
1982	36.68683
1983	37.38835
1986	39.86891
1987	40.87597
1988	41.63809
1989	40.83541
1990	42.66469
1991	44.7567
1992	49.58366
1993	51.10592
1994	50.81221
1995	53.13034
1996	56.79739
1997	47.41681
2010	47.46845
2016	13.80288
2017	35.31599
2018	12.47507