Year	% female
1970	44.03104
1971	44.10004
1972	44.10037
1973	44.09982
1974	44.16557
1975	42.70021
1976	42.64768
1977	45.96979
1978	44.6358
1979	60.28081
1980	40.1281
2003	70.58232
2004	67.72317
2005	70.243
2006	66.90791
2007	64.53084
2008	66.24743
2009	59.74178
2010	56.05945
2011	48.30229
2012	48.96023
2013	48.94285
2014	54.01257
2015	56.70836
2016	54.65602
2017	56.04787
2018	58.39747