Year % of female population 1960 9.882117561803925 1961 10.012964112974094 1962 10.133544362326491 1963 10.265023421317801 1964 10.38802607369502 1965 10.474919790877237 1966 10.542706635497588 1967 10.655250993059095 1968 10.765376401237713 1969 10.84955870011898 1970 10.971785029163811 1971 11.099554463672044 1972 11.249950006340548 1973 11.439329491357904 1974 11.645366023682355 1975 11.873276055389493 1976 12.13247277153098 1977 12.391647740996065 1978 12.614253749023256 1979 12.79395506679997 1980 12.943093066652716 1981 13.09057177432337 1982 13.229396036507572 1983 13.338535955701683 1984 13.481119957830302 1985 13.66194245143502 1986 13.805709551928429 1987 13.91739097244341 1988 14.088401784551776 1989 14.232377448897958 1990 14.27035794203003 1991 14.323663587270202 1992 14.378786148943886 1993 14.37089903219485 1994 14.363273364356374 1995 14.352906868180073 1996 14.300859499885817 1997 14.227987604126321 1998 14.140396819498823 1999 14.048228655179594 2000 13.96382229636086 2001 13.915628781385557 2002 13.870889443165328 2003 13.833829855396626 2004 13.834200355120249 2005 13.86597225993273 2006 13.913405191206582 2007 13.99124283504848 2008 14.136034627868185 2009 14.308581276087118 2010 14.480495652996506 2011 14.719866695601555 2012 15.04729979686866 2013 15.37821968365597 2014 15.635015393813443 2015 15.847371558958747 2016 16.201136183342363 2017 16.59583977121523 2018 16.939474904746664 2019 17.34150125781606 2020 17.791441099536506 2021 18.279853289253705 2022 18.763991511934076 2023 19.25263462859076