Year % of female population 1960 1.85876219879124 1961 1.84846823801693 1962 1.84792330263137 1963 1.85464789769746 1964 1.86442380190759 1965 1.8738786727583 1966 1.88502261513158 1967 1.89824990957402 1968 1.90820981233476 1969 1.90753646218329 1970 1.89527078956807 1971 1.87294774865382 1972 1.83955261770864 1973 1.8020292053414 1974 1.76989939867195 1975 1.74543041229986 1976 1.73149976553392 1977 1.72683833428145 1978 1.74104246269195 1979 1.75523927066677 1980 1.75943698016635 1981 1.77266074700715 1982 1.77372473532243 1983 1.75830555451515 1984 1.73765846356135 1985 1.71169036055507 1986 1.67893146284478 1987 1.6383283724727 1988 1.59222284395496 1989 1.51630302005224 1990 1.45895545645658 1991 1.44719417201547 1992 1.44533566761929 1993 1.44731283600401 1994 1.44400757099678 1995 1.43496679006047 1996 1.42473794746485 1997 1.4123877928727 1998 1.3979021971184 1999 1.3860533323884 2000 1.38064675625535 2001 1.37990450108474 2002 1.38231126263041 2003 1.38877635763333 2004 1.39917366120109 2005 1.41299357038254 2006 1.43250651039441 2007 1.45956331709293 2008 1.49295967567804 2009 1.52945990141679 2010 1.5674047748174 2011 1.60477730733587 2012 1.63830052457965 2013 1.66740663352845 2014 1.69975032988732 2015 1.73616778108389 2016 1.77065331906406 2017 1.8040992512305 2018 1.83687932713818 2019 1.86363900411494 2020 1.87989708238264 2021 1.88336836685232 2022 1.87621052821749 2023 1.87006786016074