Year % female 1972 24.6087894439697 1973 24.6277198791504 1974 23.7566699981689 1975 23.7556896209717 1976 23.5745601654053 1977 24.0440101623535 1978 23.5882892608643 1979 23.9190998077393 1980 23.8916606903076 1981 23.7917995452881 1982 23.0994396209717 1983 23.3068904876709 1984 23.4640102386475 1985 24.0557098388672 1986 23.8284797668457 1987 24.8157005310059 1988 24.2863292694092 1989 24.4274806976318 1990 24.3070201873779 1991 24.2945594787598 1992 24.4592304229736 1993 24.4557094573975 1994 24.841869354248 1995 25.1030502319336 1996 25.5538501739502 1997 26.1427097320557 1998 26.7416305541992 1999 27.028600692749 2000 26.4704208374023 2001 25.9066009521484 2002 25.6627407073975 2003 25.6854190826416 2004 24.8098106384277 2005 24.8161106109619 2006 24.566370010376 2007 24.3701190948486 2008 25.0526695251465 2009 24.2776794433594 2010 23.5684604644775 2011 25.6810207366943 2012 25.7826595306396 2013 26.2965297698975 2014 26.3803997039795 2015 27.3526706695557 2016 27.9664497375488 2017 28.1174507141113 2018 28.0286293029785 2019 27.7202491760254 2020 27.795280456543 2021 27.9043102264404