Year	% female
1971	27.14801
1973	32.49701
1974	30.98958
1975	27.57183
1976	26.62989
1982	36.13567
1983	36.83412
1984	36.02906
1985	36.57246
1986	38.60247
1987	41.04711
1988	41.66667
1989	40.90092
1992	39.79653
1993	42.95688
1994	42.18028
1995	40.47786
1996	41.80438
1997	41.14642
1999	41.56405
2000	39.29294
2001	38.05827
2002	37.91675
2004	40.4083
2005	39.50965
2006	39.80506
2007	40.83838
2008	40.69827
2009	41.89429
2011	43.95369
2012	42.93599
2013	42.87814
2014	44.16341
2015	43.94533
2016	44.47654
2017	44.93517
2018	45.12158
2019	45.77627