Year % of female population 1960 9.35072157980974 1961 9.29751629965091 1962 9.36020299064119 1963 9.51623146123265 1964 9.73289047337349 1965 10.0392478947603 1966 10.3968650355721 1967 10.7099018927225 1968 10.9864961214712 1969 11.2509582037565 1970 11.4521965334353 1971 11.5987768723106 1972 11.7467280523922 1973 11.8775079178056 1974 11.9742954876395 1975 12.0373092814015 1976 12.0605577691962 1977 12.0377520042231 1978 11.9715367668313 1979 11.8576987506204 1980 11.6861325956835 1981 11.4566459768233 1982 11.1770591139763 1983 10.8797695548591 1984 10.6042842284611 1985 10.369913800204 1986 10.1802628263709 1987 10.0364683455481 1988 9.94111719317599 1989 9.87039171878945 1990 9.79737562981691 1991 9.72010018985952 1992 9.6448901717501 1993 9.56003133003131 1994 9.47257194651578 1995 9.4080677998096 1996 9.37371616087751 1997 9.36851018647757 1998 9.38600737483519 1999 9.41725183428995 2000 9.50886400500062 2001 9.65975523715011 2002 9.80695976074504 2003 9.93860391838562 2004 10.0467326693663 2005 10.1303101391587 2006 10.1910250081602 2007 10.2192105697136 2008 10.2064907314202 2009 10.1494662727758 2010 10.0219928750438 2011 9.83093289105462 2012 9.61703979825365 2013 9.39555671261719 2014 9.17836553818952 2015 8.97875804134166 2016 8.80906857784733 2017 8.6572838746163 2018 8.49174128695213 2019 8.31370314876103 2020 8.14648194278203 2021 7.99356093203022 2022 7.84343208634119 2023 7.68223128688625