Year % of female population 1960 13.375320322528 1961 13.4490317935944 1962 13.4993500383601 1963 13.5228543948699 1964 13.5168521654544 1965 13.4988591512758 1966 13.4845187046796 1967 13.468431718736 1968 13.4484720860966 1969 13.4277292362651 1970 13.392386879398 1971 13.3387084649882 1972 13.2826105915277 1973 13.2295820238005 1974 13.1764179146604 1975 13.1313407599896 1976 13.1053081472517 1977 13.0843086023206 1978 13.0630899864676 1979 13.0477216673153 1980 13.0187907085519 1981 12.9707628722898 1982 12.9027037080372 1983 12.8070784713717 1984 12.7081456053136 1985 12.6396865029755 1986 12.5972865136333 1987 12.5730290406371 1988 12.5696678044319 1989 12.5711331040164 1990 12.5571711020574 1991 12.5341254901484 1992 12.4970740605184 1993 12.4346626334922 1994 12.3497671920993 1995 12.238522961454 1996 12.1037614943481 1997 11.9647901220138 1998 11.8251022077005 1999 11.6789814067872 2000 11.5405099697924 2001 11.4003073880902 2002 11.2535530378812 2003 11.114918062467 2004 10.9830872176659 2005 10.8636687312567 2006 10.7713699221991 2007 10.688902582856 2008 10.5915720393073 2009 10.475429176322 2010 10.3270844388781 2011 10.1338212044535 2012 9.92150463851385 2013 9.7203083802005 2014 9.54129099825354 2015 9.38407003948168 2016 9.24145756684313 2017 9.10528247898595 2018 8.9677122355837 2019 8.80407904404325 2020 8.6265569001784 2021 8.4763107560594 2022 8.33475073185001 2023 8.1821946383403