Year % of female population 1960 15.6014941411247 1961 15.4995517481821 1962 15.5174909529554 1963 15.6077735214426 1964 15.71499615715 1965 15.8350461363537 1966 15.9506863243518 1967 16.043748201143 1968 16.1105130965196 1969 16.1419908069064 1970 15.9885580940193 1971 15.6387421011788 1972 15.278585976142 1973 14.9813806932111 1974 14.729610709882 1975 14.4649523019494 1976 14.1938540679572 1977 13.9498640493401 1978 13.7850315365108 1979 13.7063605930177 1980 13.6336802858474 1981 13.4772427044554 1982 13.2301013024602 1983 12.9531511433352 1984 12.6866473305403 1985 12.4851336677181 1986 12.4138274308753 1987 12.4664558175196 1988 12.6020572904654 1989 12.7899491687199 1990 12.9400141749533 1991 13.0078746753791 1992 13.0417869500236 1993 13.0905669442665 1994 13.1759270135871 1995 13.3318009424204 1996 13.5714955461791 1997 13.8646428637057 1998 14.1852539714023 1999 14.4754551250266 2000 14.5894582108358 2001 14.4330616590167 2002 14.0540068163943 2003 13.5391465937379 2004 12.9930966469428 2005 12.5008855827134 2006 12.0861487992298 2007 11.7556210042382 2008 11.4964164193151 2009 11.3004451579946 2010 11.1276619221009 2011 10.9585737343005 2012 10.8179023914836 2013 10.7268141911751 2014 10.7024118381858 2015 10.6149284014203 2016 10.4193113297366 2017 10.1847551741545 2018 9.88884314532729 2019 9.51610190868578 2020 9.1776435954187 2021 8.9114569594654 2022 8.77698162905422 2023 8.75638228480173