Year % of female population 1960 18.7603060038386 1961 18.7290807664322 1962 18.495886989843 1963 18.106026166634 1964 17.598722215691 1965 17.2543008676602 1966 17.1184454418726 1967 16.9904140990146 1968 16.872935206136 1969 16.7802029263225 1970 16.7466857757076 1971 16.8029831612964 1972 16.9244178397579 1973 17.0620100156535 1974 17.1868137504769 1975 17.1723592662872 1976 16.9784060413156 1977 16.736530637406 1978 16.5393061312753 1979 16.4330497021722 1980 16.4935049514356 1981 16.6936999713076 1982 16.8909965222121 1983 17.0288093617557 1984 17.1048985062978 1985 17.1153706283534 1986 17.0822563058002 1987 17.0437901249778 1988 16.9999133486417 1989 16.9281026516378 1990 16.8198343104297 1991 16.6561380800499 1992 16.4263234415907 1993 16.1544366207579 1994 15.8526300107887 1995 15.5181201716537 1996 15.1537710379689 1997 14.7666745359909 1998 14.3632092606495 1999 13.9658657714935 2000 13.5467107844697 2001 13.0881288265253 2002 12.6240355089744 2003 12.1647265009815 2004 11.7183821523477 2005 11.3108359504711 2006 10.9848072126614 2007 10.7477726984551 2008 10.5690613969887 2009 10.4121387127035 2010 10.2726112117668 2011 10.1571303190736 2012 10.0026851844946 2013 9.79986948009571 2014 9.6157771201143 2015 9.43136484689483 2016 9.22133264922913 2017 9.06184082177406 2018 8.93226268779398 2019 8.7662382436495 2020 8.59147476057973 2021 8.40566275515469 2022 8.20248190209865 2023 8.03141811707218