Year % female 1971 16.2869205474854 1972 16.8350200653076 1974 16.6846809387207 1975 17.348030090332 1976 18.1514797210693 1977 18.3738803863525 1978 18.8202209472656 1979 20.0735492706299 1980 19.9140396118164 1981 20.1891899108887 1982 20.8333301544189 1983 21.0691108703613 1984 20.6839008331299 1985 23.1891899108887 1986 24.9876899719238 1987 25.2595195770264 1988 26.3248901367188 1989 26.0059509277344 1990 26.6098899841309 1991 27.013370513916 1993 24.4156398773193 1994 23.3786392211914 1995 24.4864406585693 1996 24.3071899414062 1998 24.4020595550537 1999 24.6938800811768 2000 24.4967002868652 2001 22.9389190673828 2002 24.8500709533691 2003 27.025239944458 2004 28.266809463501 2005 29.0593204498291 2006 30.2593803405762 2007 31.0286903381348 2008 32.9309005737305 2009 33.3812217712402 2010 34.3015098571777 2011 36.3141212463379 2012 37.6522903442383 2013 39.4916381835938 2014 41.6560897827148 2015 44.6187896728516 2016 45.797420501709 2017 46.5784606933594 2018 47.0903091430664 2019 47.9831390380859 2020 47.8534812927246 2021 47.6509819030762 2022 48.9662399291992