Year % of female population 1960 20.6493837499317 1961 20.4936636199055 1962 20.3590139998282 1963 20.2556012152356 1964 20.100945753908 1965 19.8952587443803 1966 19.6737776393647 1967 19.3940457479438 1968 19.1008456279237 1969 18.8598981103976 1970 18.6510612685912 1971 18.454457882907 1972 18.2495030589095 1973 18.025201947549 1974 17.6347419372383 1975 17.1101189880345 1976 16.6601078273189 1977 16.3588014932809 1978 16.1346518419839 1979 15.9007551240561 1980 15.6979669887279 1981 15.5333745326067 1982 15.3469911647787 1983 15.145563048129 1984 15.01914889603 1985 15.0454119968629 1986 15.2596742637904 1987 15.3815421494207 1988 15.2366891904681 1989 14.9861995686972 1990 14.7501097385088 1991 14.6431649823238 1992 14.7857293384076 1993 15.0792385251331 1994 15.3538342144832 1995 15.5807263574254 1996 15.6773184516404 1997 15.6615287310548 1998 15.6007017015684 1999 15.4863051344295 2000 15.3306828864952 2001 15.1604758164067 2002 14.9179980836509 2003 14.6225840394307 2004 14.3670369880527 2005 14.1525530665877 2006 13.9761416222824 2007 13.8864955375287 2008 13.8820645424881 2009 13.9127189357788 2010 13.9830015751028 2011 14.0868518179201 2012 14.1972972832876 2013 14.2780896858225 2014 14.304297234262 2015 14.2613464828419 2016 14.137828013743 2017 13.9581619635407 2018 13.7618479081894 2019 13.5626789001436 2020 13.3471990730848 2021 13.1233473396541 2022 12.9262340950581 2023 12.7506282656253