Year % of female population 1960 10.598133061838977 1961 11.090911929496846 1962 11.509906576952702 1963 11.77967680754642 1964 11.928222668284286 1965 12.03459378004726 1966 12.04574603480025 1967 11.993700532396412 1968 11.833638953293045 1969 11.431698715909707 1970 10.859342388820384 1971 10.304255432010933 1972 10.05312391826006 1973 10.36543039833639 1974 10.978697615125666 1975 11.614073949310585 1976 12.24430428767514 1977 12.527172960753317 1978 12.414809508530308 1979 12.300570715954292 1980 12.268500693887635 1981 12.240504689489237 1982 12.196658457975259 1983 12.027242922453404 1984 11.695840521732064 1985 11.22944460654797 1986 10.681920471955564 1987 10.12936218770926 1988 9.59481212462413 1989 9.180487155677083 1990 8.940579186323117 1991 8.85325362735902 1992 8.91775059434978 1993 8.998164233169554 1994 9.007358313524685 1995 9.018583303605737 1996 9.05188642690546 1997 9.093126048280427 1998 9.158076050680238 1999 9.24855739534201 2000 9.327396473721617 2001 9.2489673564848 2002 8.952825767878004 2003 8.603664617758497 2004 8.23872888527167 2005 7.8160002490111395 2006 7.460377395198625 2007 7.222775003748054 2008 7.0116991699965645 2009 6.813830790073297 2010 6.654208538883974 2011 6.523573836860923 2012 6.400484338654706 2013 6.298514078950337 2014 6.223070637973843 2015 6.154815347368923 2016 6.107207750522487 2017 6.104534032393175 2018 6.136437168091007 2019 6.186741231786232 2020 6.235111959480505 2021 6.277747761218126 2022 6.3345985861961625 2023 6.376874727097397