Year % of female population 1960 9.06309478492577 1961 8.8974127734719 1962 8.73143311232198 1963 8.495582534527 1964 8.22488958182965 1965 7.98541795736674 1966 7.77755261426226 1967 7.62808456320495 1968 7.57569046400235 1969 7.5949409384469 1970 7.65734362464382 1971 7.73795003988634 1972 7.77352884595996 1973 7.72581124530545 1974 7.60560648309889 1975 7.43451369652691 1976 7.24986636542933 1977 7.11539124106948 1978 7.06355001006447 1979 7.07708057859929 1980 7.1374961863114 1981 7.22042758149438 1982 7.27034597334222 1983 7.29194951124457 1984 7.31237829600995 1985 7.30877208094411 1986 7.25971995482188 1987 7.16847657035086 1988 7.03788742944146 1989 6.87395393330832 1990 6.67266089968931 1991 6.46191773825597 1992 6.31469526950131 1993 6.20943820224719 1994 6.06714718109175 1995 5.8997876047247 1996 5.73058108671332 1997 5.51539872889773 1998 5.27570234648409 1999 5.08375446913377 2000 4.92209673430452 2001 4.77184939145257 2002 4.66273148216433 2003 4.57400890746137 2004 4.48075359308717 2005 4.41677360461855 2006 4.36723552348977 2007 4.31622102572797 2008 4.28498893757657 2009 4.28655945526721 2010 4.29284632882987 2011 4.32016070204647 2012 4.41079613586 2013 4.58229782427222 2014 4.77414635520543 2015 4.95010132316128 2016 5.11606128709757 2017 5.21956044206622 2018 5.22661441270037 2019 5.17775621557797 2020 5.11494874099696 2021 5.03667581388246 2022 4.95973599676351 2023 4.88664451928137