Year	% female
1970	44.00843
1973	48.29754
1975	51.20955
1976	52.37424
1977	46.74928
1980	49.60663
1982	50.23685
1983	50.6538
1984	50.51967
1991	52.95619
2000	43.54578
2013	54.62191
2014	53.97162
2015	53.26287
2016	52.83648
2017	52.44037