Year	% female
1971	12.3107795715332
1972	11.3164501190186
1973	11.3852396011353
1974	12.4009504318237
1975	13.6636896133423
1977	14.7505702972412
1978	15.3497695922852
1996	23.4018802642822
1999	16.7858695983887
2000	16.998119354248
2001	18.3373394012451
2002	17.4506206512451
2003	17.8106098175049
2004	16.0783100128174
2005	18.9283905029297
2006	20.1354999542236
2007	23.5106792449951
2008	19.4769401550293
2009	21.8439903259277
2010	21.5827198028564
2011	24.2279090881348
2012	26.8939990997314
2013	27.9984302520752
2014	29.768030166626
2015	30.5832099914551
2016	31.1219692230225
2017	33.2015686035156
2018	33.5958595275879
2019	33.370979309082
2020	33.9968490600586