Year % of female population 1960 13.3085461698431 1961 13.1061272354148 1962 13.2042422462995 1963 13.3542775978002 1964 13.4081284265126 1965 13.4068668437 1966 13.3898653523583 1967 13.3852063176726 1968 13.3995993801731 1969 13.4113736810104 1970 13.4034561030081 1971 13.3820637390828 1972 13.3615938154963 1973 13.3627051643006 1974 13.379543926542 1975 13.3599160497977 1976 13.2419319070201 1977 12.9782918569897 1978 12.5569854880764 1979 12.0118576397814 1980 11.4016835634372 1981 10.7968183304018 1982 10.2739908131169 1983 9.88926428319298 1984 9.6737960359672 1985 9.6255917935345 1986 9.70989296127543 1987 9.8842858320094 1988 10.0945380141333 1989 10.2857062591302 1990 10.4085212522459 1991 10.3979218217843 1992 10.222920129441 1993 9.91145146080227 1994 9.51414502827429 1995 9.09092482827387 1996 8.69912634017637 1997 8.39058946171342 1998 8.20128781037051 1999 8.12665148441745 2000 8.16527247017219 2001 8.26383994589904 2002 8.38795759443002 2003 8.51071687194827 2004 8.55918919910131 2005 8.4896044124717 2006 8.35210554536786 2007 8.16665413439607 2008 7.90632588706251 2009 7.70556733626475 2010 7.61149331001447 2011 7.53263770030573 2012 7.48125567718196 2013 7.49071180315476 2014 7.46703217052688 2015 7.37951415006902 2016 7.25384953805543 2017 7.07038826419022 2018 6.85006176109982 2019 6.58987991713375 2020 6.30437959315388 2021 6.06327957700135 2022 5.87080197505 2023 5.67162120376153