Year	% female
1970	48.60944
1971	48.61439
1972	48.6242
1973	48.72804
1974	48.59147
1975	48.58763
1976	48.70502
1977	48.56695
1978	48.56449
1979	48.52568
1980	48.54201
1981	48.53398
1982	48.49166
1983	48.39119
1984	48.4597
1985	48.49753
1986	48.46212
1987	48.39486
1988	48.39602
1989	48.43793
1990	48.50307
1991	48.43634
1992	48.43438
1993	48.41476
1994	48.46331
1995	48.42496
1996	48.39815
1997	48.53916
1998	48.68072
1999	48.70283
2000	48.38117
2001	48.50246
2002	48.5857
2003	48.56266
2004	48.51957
2005	48.49401
2006	48.66641
2007	48.58779
2008	48.62542
2009	48.66383
2010	48.5905
2011	48.73527
2012	48.61992
2013	48.6736
2014	48.71525
2015	48.79752
2016	48.75495
2017	48.71156
2018	48.7117