Year % of female population 1960 6.28693850327521 1961 6.1794935596911 1962 6.07513802377483 1963 5.96530947218235 1964 5.84923917272918 1965 5.74459380688259 1966 5.66801679895972 1967 5.63270665516053 1968 5.64226196823346 1969 5.66665952925387 1970 5.66050238158287 1971 5.62556401603645 1972 5.62492935046198 1973 5.70247657125479 1974 5.83964832740176 1975 6.01783921942368 1976 6.29542679355546 1977 6.66315113191138 1978 6.94999016165732 1979 7.08975844444534 1980 7.14609663733558 1981 7.08099556509627 1982 6.87150095952051 1983 6.66901599490447 1984 6.5602962154471 1985 6.50674631248851 1986 6.51760440910727 1987 6.58663764500283 1988 6.6811404934687 1989 6.79947576101881 1990 6.95843017681387 1991 7.13688817538387 1992 7.30778135931387 1993 7.4735451833534 1994 7.64128060851369 1995 7.78229862647641 1996 7.85862087065401 1997 7.87412686234806 1998 7.84323161546285 1999 7.76503808019301 2000 7.65600774535505 2001 7.55969119698615 2002 7.45008569595507 2003 7.2861113389548 2004 7.08750126395576 2005 6.87040028952834 2006 6.63006405872374 2007 6.40873113836133 2008 6.27653670624768 2009 6.26048038590742 2010 6.34044514985833 2011 6.45745454804038 2012 6.57630232140558 2013 6.67246926008395 2014 6.70560908068709 2015 6.68919517806281 2016 6.66426444477211 2017 6.65346908509228 2018 6.65788571470009 2019 6.6562642594206 2020 6.65153857966425 2021 6.65533091922029 2022 6.65556006641411 2023 6.63454877832944