Year % of female population 1960 10.4305957640464 1961 10.4301687437466 1962 10.4204143109804 1963 10.413957350281 1964 10.380258809783 1965 10.3154030955731 1966 10.2694386909655 1967 10.2536417063545 1968 10.2508509010002 1969 10.2868244552945 1970 10.3923669934089 1971 10.5527366554712 1972 10.7981997679373 1973 11.167765356966 1974 11.5850215359562 1975 11.9625541931968 1976 12.2507465202536 1977 12.4096485960881 1978 12.4315466251959 1979 12.3501709345706 1980 12.2133869722048 1981 12.055169134557 1982 11.8665025889185 1983 11.6066325357006 1984 11.2357433261605 1985 10.7222534590001 1986 10.0650258317458 1987 9.30861964513026 1988 8.5278166461685 1989 7.79628127386605 1990 7.16591084925311 1991 6.65613663448489 1992 6.37509362050843 1993 6.34634668423156 1994 6.45734558678756 1995 6.66397776642163 1996 6.93236872024918 1997 7.16081568600444 1998 7.31752844189257 1999 7.44594001019398 2000 7.52746115788278 2001 7.53122370827592 2002 7.43805522173352 2003 7.2490678071409 2004 6.9786651320385 2005 6.67483959472311 2006 6.41635496328781 2007 6.2596528884937 2008 6.20014167195234 2009 6.19989549952097 2010 6.21369503515551 2011 6.20839917530583 2012 6.16330434874687 2013 6.0647292866089 2014 5.9076125213327 2015 5.69518793671869 2016 5.45736478237544 2017 5.24029838395562 2018 5.09122646131858 2019 5.04332973625603 2020 5.09344848941216 2021 5.22474931684805 2022 5.35071529376863 2023 5.40735791761663