Year	% female
1973	0
1974	0
1975	0
1976	0
1977	0
1978	5.10441
1979	6.65499
1980	13.17016
1981	15.37433
1982	18.10398
1983	19.34021
1984	19.04412
1985	14.69298
1986	17.56529
1987	7.03282
1988	4.38746
1989	0
1990	0
1991	0
1992	0
1993	0
1994	0
1995	0
1996	0
1997	0
1998	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0
2018	22.32305