Year	% female
1971	39.52756
1972	40.3165
1973	38.20225
1974	38.94536
1975	41.57927
1976	43.47319
1977	42.93746
1978	42.66994
1979	47.32704
1980	22.22222
1981	27.27273
1982	21.36499
1983	21.69231
1984	34.17266
1985	37.91908
1986	38.25364
1987	36.03708
1988	30.98739
1989	24.60094
1990	31.72475
1991	31.625
1996	28.94646
1998	27.98826
1999	22.30102
2000	21.0637
2001	22.86499
2002	29.10009
2003	29.73518
2004	29.88291
2005	30.99055
2012	34.09925
2013	33.30502
2014	34.378
2015	35.55147
2016	36.77358
2017	39.84205
2018	35.56239