Year % of female population 1960 19.6669328272658 1961 19.9526020640148 1962 20.2238169153095 1963 20.4643014036776 1964 20.6673247857385 1965 20.8281861809252 1966 20.9180637404174 1967 20.939906279409 1968 20.9174015144254 1969 20.8368114979047 1970 20.6955953645379 1971 20.5354779981043 1972 20.3832169730797 1973 20.2308859010537 1974 20.0955878230644 1975 19.984942033347 1976 19.8699057942144 1977 19.7443486093977 1978 19.6057802901047 1979 19.4533698834055 1980 19.2934962339071 1981 19.1197389079439 1982 18.9261946285018 1983 18.7331522102506 1984 18.5424267939003 1985 18.334555992252 1986 18.1313564932874 1987 17.9356822948665 1988 17.7279901008932 1989 17.5103959417066 1990 17.1938671000365 1991 16.8049812403406 1992 16.4714689346724 1993 16.2215622516892 1994 16.0713795786227 1995 16.0276721538767 1996 16.0211107652561 1997 15.949821304061 1998 15.7565745412332 1999 15.4372068483016 2000 15.0289072028399 2001 14.5868802148076 2002 14.189241592067 2003 13.8918763197858 2004 13.6798246171063 2005 13.5323557870041 2006 13.4534685603338 2007 13.4312507536469 2008 13.4435427601421 2009 13.4638933299634 2010 13.4670871756155 2011 13.4192203096144 2012 13.2799586673765 2013 13.1338753009316 2014 13.0094890051279 2015 12.7026620392376 2016 12.2827084227255 2017 11.9217965731493 2018 11.6216351235885 2019 11.3221574080429 2020 11.0592890209134 2021 10.8786534883795 2022 10.7201412918864 2023 10.5587163295276