Year % of female population 1960 13.0061620990445 1961 13.1963663413456 1962 13.4295748641033 1963 13.6782325556084 1964 13.9099565616641 1965 14.1638357995807 1966 14.5297395114053 1967 15.0622943352594 1968 15.7800250543808 1969 16.6725852272727 1970 17.6256952656243 1971 18.4538064289253 1972 19.0087236356996 1973 19.1254639858761 1974 18.7944717067934 1975 18.1974584215031 1976 17.5086133509999 1977 16.8478473879038 1978 16.3380038537362 1979 16.018130352896 1980 15.8357013785138 1981 15.7698124600953 1982 15.793448103523 1983 15.8205970629968 1984 15.7723133207746 1985 15.6309456721248 1986 15.3986527824439 1987 15.1068489351022 1988 14.7805877635535 1989 14.4537143917757 1990 14.1953609845212 1991 14.021679445302 1992 13.8843632603327 1993 13.7471690295363 1994 13.5698417160707 1995 13.3215758274578 1996 13.0113579587509 1997 12.6549546982462 1998 12.2628187987013 1999 11.8509011064947 2000 11.4455422352329 2001 11.070051359654 2002 10.7329487418704 2003 10.4402967907889 2004 10.1931613274956 2005 10.0043086591484 2006 9.86457039423287 2007 9.76450686313424 2008 9.72094091236297 2009 9.73471671201745 2010 9.7761512692604 2011 10.3226611879065 2012 10.9064121090469 2013 10.8488790596044 2014 10.748740249718 2015 10.6741723308415 2016 10.6442297780235 2017 10.5009995370113 2018 10.2513458329086 2019 10.0449649946483 2020 9.82346592179893 2021 9.53363109909785 2022 9.30845555450231 2023 9.14521871200953