Year % of female population 1960 11.8368206374099 1961 11.7952186489823 1962 11.7684930173497 1963 11.7386636611552 1964 11.7420966532915 1965 11.8213346777503 1966 11.985247698777 1967 12.2355020692686 1968 12.5634514744744 1969 12.881689832549 1970 13.1007060343105 1971 13.2282417150765 1972 13.2682698955762 1973 13.1991298228521 1974 13.0504492664492 1975 12.8604915368489 1976 12.6536731570683 1977 12.4185193799827 1978 12.1218529627987 1979 11.7462055853534 1980 11.2606703228323 1981 10.6192287725474 1982 9.8412622603517 1983 9.02546425401863 1984 8.25770048323199 1985 7.59273452413546 1986 7.04783753421761 1987 6.73409622555775 1988 6.67725177471648 1989 6.75605213866222 1990 6.92130690948045 1991 7.16144788351641 1992 7.37510646739427 1993 7.52850829629793 1994 7.67674960691175 1995 7.79141325844558 1996 7.8114126732745 1997 7.69620189175531 1998 7.46160497242758 1999 7.15317616001978 2000 6.82485110826832 2001 6.53735883777806 2002 6.34793331747012 2003 6.25635281275953 2004 6.22899154513193 2005 6.22892222046393 2006 6.22185134446197 2007 6.18217699715508 2008 6.09446368198563 2009 5.95323399944864 2010 5.75723985464261 2011 5.51517542421963 2012 5.28258648166418 2013 5.12410667286053 2014 5.06692393656383 2015 5.10658467701102 2016 5.21768517979221 2017 5.32505976516292 2018 5.37413387553813 2019 5.36747981357547 2020 5.32576338698213 2021 5.24971793403132 2022 5.15222859663435 2023 5.07506514979802