Year % of female population 1960 17.52485092990121 1961 17.604475102035604 1962 17.682152655687915 1963 17.74309590196951 1964 17.781297998621465 1965 17.798113219967526 1966 17.795625338217565 1967 17.78220398020867 1968 17.76576245638479 1969 17.750996866145197 1970 17.736722439505012 1971 17.708180692811613 1972 17.692071658175646 1973 17.69740770961242 1974 17.69522467218419 1975 17.68832229381597 1976 17.685307795716845 1977 17.68086373092336 1978 17.678464023628013 1979 17.688688468476254 1980 17.695787644087996 1981 17.69964434761621 1982 17.711857333366748 1983 17.717236258342165 1984 17.70237811328653 1985 17.663052020647864 1986 17.601504551878676 1987 17.526365653985582 1988 17.422352309942863 1989 17.308120372945908 1990 17.198889350888756 1991 17.075610681934357 1992 16.953074903407472 1993 16.833872072749983 1994 16.69764162519028 1995 16.560085148344513 1996 16.437802713676557 1997 16.31759506972839 1998 16.18662502804087 1999 16.064530881990294 2000 15.955568047020446 2001 15.856597820435152 2002 15.786145676186337 2003 15.726076747159338 2004 15.652995263768295 2005 15.567503332512185 2006 15.472641439219117 2007 15.377769782492217 2008 15.291369789248632 2009 15.206056603277128 2010 15.116748750059404 2011 15.021938781673619 2012 14.919993076163498 2013 14.811740392637896 2014 14.691326771525638 2015 14.555774091941977 2016 14.410847745839055 2017 14.262025425012778 2018 14.115296354366354 2019 13.979842301437344 2020 13.85664860081495 2021 13.741656092064591 2022 13.631103586017147 2023 13.516743026443034