Year % of female population 1960 0.35450196147551544 1961 0.3424571933313323 1962 0.3295412413907223 1963 0.31971359518629217 1964 0.3164931622347403 1965 0.3192146759399046 1966 0.3263839550536153 1967 0.3375727234544706 1968 0.34931811433168675 1969 0.35700612447302155 1970 0.36022320494095583 1971 0.36038709582785394 1972 0.359054812338566 1973 0.35978395066055036 1974 0.3659280208839638 1975 0.37794350239117475 1976 0.394409819536365 1977 0.4140501486642776 1978 0.43371073579205766 1979 0.4498125542437265 1980 0.4617145234791471 1981 0.4702341560965707 1982 0.475947551277012 1983 0.48078177898553126 1984 0.48743374958003705 1985 0.4970255416535102 1986 0.508964822407719 1987 0.5227888755776248 1988 0.537268808511884 1989 0.5505646827990005 1990 0.5626295038092081 1991 0.5741790360826142 1992 0.5847803981488326 1993 0.594678439415563 1994 0.6046784809934325 1995 0.6150681613083322 1996 0.6254835666903933 1997 0.6362086759603308 1998 0.6478813068377899 1999 0.6602512587611244 2000 0.6725990450431207 2001 0.6845766797480342 2002 0.696496506751878 2003 0.7089199500248066 2004 0.7221926607246013 2005 0.736154860309948 2006 0.7505320437990286 2007 0.7646996284179798 2008 0.7784983830118373 2009 0.792248117508584 2010 0.8067960338757538 2011 0.8231542230990437 2012 0.843325723625282 2013 0.8685812668953876 2014 0.8985873557253212 2015 0.9327659038907113 2016 0.9707380544092542 2017 1.0119341911097983 2018 1.0530847550977485 2019 1.0910814126992554 2020 1.1214708095826893 2021 1.12780163384814 2022 1.1205070888764888 2023 1.1385662293025116