Year % of female population 1960 13.7433760812954 1961 13.9344263425814 1962 14.2025217649682 1963 14.5353451136952 1964 14.8436177763836 1965 15.0361501725853 1966 15.093860321316 1967 15.0138578474993 1968 14.8029390908706 1969 14.5190214322032 1970 14.2162180069068 1971 13.8975402894498 1972 13.5056536328059 1973 13.0053963533591 1974 12.4219135980786 1975 11.7635337281832 1976 11.0227589541929 1977 10.2309462341158 1978 9.44043245104771 1979 8.68520269293453 1980 8.00859263877794 1981 7.44751534685898 1982 7.12691793710938 1983 7.07102987633547 1984 7.15834115811624 1985 7.33523670690867 1986 7.58411305066444 1987 7.79308755972794 1988 7.92625438289124 1989 8.04561551241253 1990 8.13546152472773 1991 8.13470006592207 1992 7.98937515654212 1993 7.70738973158647 1994 7.35189624140267 1995 6.98901020547551 1996 6.68093084525006 1997 6.47470959085109 1998 6.35665652720484 1999 6.30105958251871 2000 6.28110169530597 2001 6.2703283277867 2002 6.23220601988235 2003 6.1383569983524 2004 6.00380774413671 2005 5.85257436114753 2006 5.6851481661487 2007 5.50802587260161 2008 5.35066820992331 2009 5.25084807043283 2010 5.23055943951418 2011 5.29474158065794 2012 5.37983809340602 2013 5.41962518545906 2014 5.40320465057052 2015 5.35042806870478 2016 5.253518962695 2017 5.13766059993384 2018 5.0527627906421 2019 4.96401941173591 2020 4.83686319908232 2021 4.70438745364925 2022 4.58525776719591 2023 4.45050431836165