Year	% female
1971	29.41738
1972	41.87117
1973	69.84072
1974	63.81282
1990	5.02152
1991	7.44828
1992	7.42706
1993	10.03501
1995	11.11111
1996	10.6383
1997	10.20408
1999	48.0529
2000	44.88584
2001	45.88378
2002	47.52705
2003	47.55299
2004	47.75767
2005	45.85062
2006	44.00685
2007	43.52694
2008	43.43003
2009	45.31646
2010	43.58773
2011	40.94227
2012	38.91318
2013	40.68536
2014	39.90113
2015	41.23539
2016	38.21596
2017	37.09677
2018	34.50855