Year % of female population 1960 11.6119779393175 1961 12.0657835769921 1962 12.5430314090514 1963 13.07295306335 1964 13.3494566852296 1965 13.3216901588667 1966 13.272769258018 1967 13.2310594404457 1968 13.1945722008556 1969 13.1632949805381 1970 13.1311970573118 1971 13.0982895141036 1972 13.0695622099567 1973 13.0424989174345 1974 13.0165293360126 1975 12.9954486606975 1976 12.9804970671049 1977 12.9770141679984 1978 12.9982088426335 1979 13.0503057061471 1980 13.103127646072 1981 13.1332594737676 1982 13.1479045556987 1983 13.2430467947165 1984 13.3750459568258 1985 13.472968848373 1986 13.5779460429979 1987 13.7859159566195 1988 14.0667488803843 1989 14.1994629286553 1990 14.265354929604 1991 14.4410995674137 1992 14.7905365391609 1993 15.1993213190425 1994 15.5173330635523 1995 15.654625447657 1996 15.5033780489896 1997 15.1226705238946 1998 14.5976981409408 1999 13.9994431809436 2000 13.4235951914923 2001 12.9317692696612 2002 12.525411611161 2003 12.2118462928394 2004 12.0073364139008 2005 11.8800659202301 2006 11.8191538578194 2007 11.8443688617628 2008 11.9566203915192 2009 12.1397378156577 2010 12.3719924700308 2011 12.5839630167742 2012 12.7070795363648 2013 12.7261183328596 2014 12.6432267618751 2015 12.4714863209653 2016 12.235492561337 2017 11.9991170826393 2018 11.8304987150996 2019 11.772989939943 2020 11.8280201338738 2021 11.974525888587 2022 12.1490404658282 2023 12.2645919782084