Year	% female
1970	49.01789
1971	49.07023
1972	49.36481
1973	49.50624
1974	49.58259
1975	49.36585
1976	49.15206
1977	49.18164
1978	49.15917
1979	49.19196
1980	49.16179
1981	49.09377
1982	49.019
1983	49.05498
1984	49.03956
1985	49.19833
1986	49.03579
1987	49.21888
1988	49.20777
1989	49.17126
1990	49.04352
1991	48.92433
1992	48.9709
1993	48.85893
1994	48.67216
1995	48.53043
1996	48.48276
1997	48.3763
1998	48.26645
1999	48.31752
2000	48.28503
2001	48.33499
2002	48.25373
2003	48.42736
2004	48.49037
2005	48.51679
2006	48.56715
2007	48.60784
2008	48.71254
2009	48.71691
2010	48.6879
2011	48.61788
2012	48.71366
2013	48.78136
2014	48.80794
2015	48.85673
2016	48.88208
2017	48.90564
2018	48.95147