Year % of female population 1960 8.54578295501336 1961 8.51420364009071 1962 8.47978376548813 1963 8.44807473421421 1964 8.42243813717513 1965 8.40254382999439 1966 8.38410722991393 1967 8.36931507919446 1968 8.39049218657646 1969 8.49744715693075 1970 8.50942996247069 1971 8.49484424212025 1972 8.65154240405653 1973 8.85902482521697 1974 9.05670994871589 1975 9.39613785035062 1976 9.82494720371585 1977 10.193576483262 1978 10.4903492051482 1979 10.7753882777554 1980 10.8315035464524 1981 10.71466819917 1982 10.6268103874465 1983 10.4667299050378 1984 10.2697922645697 1985 10.0662159377284 1986 9.91335376770958 1987 9.77533845868748 1988 9.61062644641473 1989 9.43604532216192 1990 9.30424881502962 1991 9.18875736461694 1992 9.15268397856149 1993 9.084878640564 1994 8.73523058740662 1995 8.12810729356387 1996 7.41631158713746 1997 6.60501108337557 1998 6.01171845201519 1999 5.90518630497291 2000 6.27449255809206 2001 6.99654990184392 2002 7.91882685091877 2003 8.91220358474686 2004 9.70946181455819 2005 10.1756105344717 2006 10.4272645710997 2007 10.6137953544741 2008 10.7059860628265 2009 10.6713684064278 2010 10.5621072014621 2011 10.4520307967775 2012 10.3205546827829 2013 10.1626744442674 2014 9.99040922796237 2015 9.75664355812668 2016 9.41328405733586 2017 8.95615882314173 2018 8.527280419612 2019 8.20542328194211 2020 7.96720117599418 2021 7.86776890482467 2022 7.92244927577391 2023 7.97955483735345