Year % of female population 1960 6.92437773329016 1961 7.17038135788467 1962 7.41607983836282 1963 7.66757949526652 1964 7.91352365889325 1965 8.22689937615647 1966 8.57764942859758 1967 8.89020706664689 1968 9.19987295713531 1969 9.49207909033792 1970 9.78567587868883 1971 10.0813553289103 1972 10.3970160714618 1973 10.7073514348985 1974 10.9954391122295 1975 11.2753719489219 1976 11.502952060614 1977 11.730271844138 1978 11.9336553965787 1979 12.0946403893472 1980 12.1114347317819 1981 11.9722184797019 1982 11.8019644933344 1983 11.5934520736748 1984 11.4756777143311 1985 11.4694961710984 1986 11.4958519402701 1987 11.6145272361436 1988 11.8240452392237 1989 12.0526390018651 1990 12.3186051132471 1991 12.5668486206257 1992 12.7688811568774 1993 12.9886126721045 1994 13.2377568333297 1995 13.5202476599711 1996 13.8028305348625 1997 14.0568702861517 1998 14.2863809096104 1999 14.5117579940212 2000 14.7458331975677 2001 14.9844744539457 2002 15.2314067005801 2003 15.4470908600028 2004 15.6429177253285 2005 15.8317911250684 2006 15.9837486562256 2007 16.0686803468021 2008 16.1060270778357 2009 16.1415502662097 2010 16.1831084158883 2011 16.3986871262535 2012 16.8239189418433 2013 17.3234913147008 2014 17.8557445882563 2015 18.4053170508746 2016 19.004192846287 2017 19.6119702000363 2018 20.2054219190283 2019 20.8053740932358 2020 21.3810988867188 2021 21.8907071546567 2022 21.5373252833582 2023 21.4563406805461