Year % of female population 1960 12.6371426283335 1961 12.5988312134754 1962 12.560853897316 1963 12.5051061712257 1964 12.4176667293968 1965 12.309786057794 1966 12.2034480390137 1967 12.1438558230702 1968 12.1699876886599 1969 12.2335025380711 1970 12.3109121418708 1971 12.4035504317194 1972 12.4766074644257 1973 12.5236822373203 1974 12.591769250007 1975 12.6945043103448 1976 12.8185489123355 1977 12.9580368591758 1978 13.0930721123289 1979 13.2359343329136 1980 13.4121111924185 1981 13.5749782040105 1982 13.6722612350686 1983 13.710764881726 1984 13.6876120111217 1985 13.5775960009089 1986 13.4250875286732 1987 13.2953190827058 1988 13.1948795376657 1989 13.1119217376886 1990 13.0474742832903 1991 12.9965383692635 1992 12.9434237131381 1993 12.8873024625456 1994 12.8291487187079 1995 12.7713620759233 1996 12.7175497515443 1997 12.6631584714566 1998 12.6052829193051 1999 12.5513910460439 2000 12.4633078292671 2001 12.3348007283786 2002 12.2104834036823 2003 12.1040073882097 2004 12.0236051595882 2005 11.9741901343837 2006 11.9391596932968 2007 11.8990147131016 2008 11.8534311149332 2009 11.8112548522353 2010 11.762584055071 2011 11.7072890702834 2012 11.6591151145369 2013 11.6091329213351 2014 11.5432881878964 2015 11.4706732641169 2016 11.419348215406 2017 11.3917872422285 2018 11.3763190564867 2019 11.3729762821173 2020 11.3925305408057 2021 11.4246715823987 2022 11.4699765501322 2023 11.5379151984885