Year	% female
1972	72.59887
1973	72.63598
1974	85.35403
1975	93.12169
1976	92.04738
1977	81.00649
1978	77.45665
1979	83.25688
1986	35.90734
1987	92.85714
1990	57.61589
1994	57.5
1995	57.64706
1999	54.9963
2000	33.00885
2001	32.70637
2003	60.83744
2004	61.99262
2005	67.82946
2006	67.31707
2007	72.76119
2008	45.57823
2009	67.36111
2010	57.83784
2011	69.2053