Year % of female population 1960 14.5921336618566 1961 14.7879575083228 1962 14.9796717210354 1963 15.1479611019093 1964 15.2806761525673 1965 15.3708197530139 1966 15.4200494798483 1967 15.442073721202 1968 15.450808027408 1969 15.4582821901223 1970 15.4798348731401 1971 15.5255226178838 1972 15.5966068739097 1973 15.6901923859438 1974 15.8066512066002 1975 15.9342894924219 1976 16.0417422917586 1977 16.112590433159 1978 16.1495562957744 1979 16.1513597825693 1980 16.1276000679982 1981 16.1055499069538 1982 16.0981700772828 1983 16.0897401798584 1984 16.0649638188307 1985 16.0144125493001 1986 15.9230595430302 1987 15.7912930722049 1988 15.6525936886368 1989 15.5296706440275 1990 15.4270407882494 1991 15.3499562835884 1992 15.2774164425232 1993 15.1594742107518 1994 14.9689722304794 1995 14.7100273120866 1996 14.3900320712197 1997 14.0444848853984 1998 13.7395572066136 1999 13.5096175090378 2000 13.3351514548158 2001 13.1939522982839 2002 13.0625593158376 2003 12.9114837161384 2004 12.7311097534294 2005 12.5402155448749 2006 12.2204887735722 2007 11.7921315560262 2008 11.6605168411848 2009 11.7404668387007 2010 11.7806914526176 2011 11.8691329581648 2012 12.1946023437511 2013 13.0459879030556 2014 14.0970437359889 2015 14.7550209831545 2016 14.8805390940986 2017 14.621175857644 2018 13.8741467310046 2019 12.6846253569007 2020 11.4721506587936 2021 10.3345408144642 2022 9.2384046324394 2023 8.2792411664928