Year	% female
1970	48.699
1971	48.70655
1972	48.74035
1973	48.95916
1974	48.68031
1975	48.69502
1976	48.93195
1977	48.647
1978	48.64371
1979	48.58671
1980	48.61811
1981	48.61733
1982	48.63316
1983	48.63543
1984	48.59744
1985	48.57064
1986	48.54517
1987	48.59953
1988	48.53332
1989	48.59815
1990	48.63407
1991	48.68106
1992	48.69052
1993	48.65056
1994	48.60678
1995	48.52467
1996	48.50928
1997	48.51994
1998	48.49756
1999	48.51088
2000	48.54444
2001	48.54757
2002	48.50929
2003	48.52755
2004	48.52764
2005	48.50377
2006	48.53013
2007	48.53146
2008	48.49365
2009	48.53098
2010	48.53975
2011	48.58345
2012	48.6259
2013	48.67525
2014	48.6753
2015	48.67611
2016	48.67612
2017	48.59824
2018	48.59998