Year % of female population 1960 8.17987152034261 1961 8.27037773359841 1962 8.38655928908637 1963 8.49040290506658 1964 8.59988663049639 1965 8.74325248992625 1966 8.79652693758452 1967 8.64132231404959 1968 8.34355076017656 1969 8.1327706170868 1970 8.02830389444563 1971 7.92601064094277 1972 7.89473684210526 1973 7.97883967997202 1974 8.08911175962843 1975 8.28975401898121 1976 8.61848124428179 1977 8.95729339988907 1978 9.30929941343176 1979 9.69639767185779 1980 10.054651408557 1981 10.3474364197172 1982 10.4808843594242 1983 10.5331496104722 1984 10.6414769417783 1985 10.8053577071736 1986 10.8196339046287 1987 10.6956288788677 1988 10.645907397096 1989 10.6722135266496 1990 10.7291790778029 1991 10.6768387356476 1992 10.5428767097932 1993 10.5087050655788 1994 10.6027810005368 1995 10.737770918607 1996 10.5634727786169 1997 10.0748024469 1998 9.57844568897733 1999 9.12453956560396 2000 8.70269080849994 2001 8.48191738471663 2002 8.50451930977814 2003 8.58689065208507 2004 8.69028397758571 2005 8.78848649286304 2006 8.69593529817798 2007 8.41936041027276 2008 8.17610915946668 2009 7.96894496048801 2010 7.82687720095422 2011 7.46095429144577 2012 6.7966692762081 2013 6.29042988378841 2014 5.99892876272094 2015 5.75976600950586 2016 5.66376609815524 2017 5.7589181627419 2018 5.84827772890303 2019 5.83576656933722 2020 5.79238272788142 2021 5.68735697570688 2022 5.54715917823659 2023 5.43064948322062