Annual % female
1971 19.391149520874
1972 19.9484901428223
1973 19.934440612793
1974 20.1412792205811
1975 20.0284309387207
1976 20.1315803527832
1977 19.6231594085693
1978 20.8523006439209
1979 21.8780307769775
1980 22.1188297271729
1981 21.4324493408203
1982 21.2496109008789
1983 20.8733100891113
1984 21.1237106323242
1985 20.2836208343506
1986 19.9820899963379
1987 20.2301292419434
1988 20.8182392120361
1989 20.1611404418945
1990 19.4804000854492
1991 18.7753295898438
1992 14.5747804641724
1994 16.0727195739746
1995 16.0164108276367
1996 14.4848003387451
1997 14.1462097167969
1998 12.1207504272461
1999 13.4591197967529
2000 13.2124099731445
2001 12.4768400192261
2002 12.2722396850586
2003 12.0964202880859
2004 11.8580799102783
2005 11.5680198669434
2006 12.1701202392578
2007 12.0867300033569
2008 12.2092599868774
2009 12.8298902511597
2010 13.7897300720215
2011 13.5777997970581
2012 13.87965965271
2013 14.6647300720215
2014 16.0301609039307
2015 15.8331098556519
2016 16.1739501953125
2017 16.3959503173828
2018 16.5595397949219
2019 17.0358905792236
2020 17.4499206542969
2021 18.2579898834229
2022 19.0946197509766