Year % of female population 1960 7.5026308488969 1961 8.41831358624005 1962 9.26059359451395 1963 10.0128606234214 1964 10.6268756558735 1965 10.9776546224454 1966 11.1757317115295 1967 11.3893984779374 1968 11.609724638172 1969 11.8584233439784 1970 12.1433005906444 1971 12.4339495944234 1972 12.6987877398075 1973 12.8864488858715 1974 12.9567675677106 1975 12.9150648639474 1976 12.7595841885169 1977 12.5098381845763 1978 12.2242227754753 1979 11.9615456416928 1980 11.7505087141703 1981 11.6089342246418 1982 11.5337521406971 1983 11.5118105011209 1984 11.5118203794086 1985 11.4956629755213 1986 11.461165699627 1987 11.4117165469411 1988 11.3477342495386 1989 11.2989638484344 1990 11.2803389366376 1991 11.2599522510589 1992 11.2463890501803 1993 11.2795684841628 1994 11.371135052671 1995 11.5135928075305 1996 11.7089881175004 1997 11.9201275000751 1998 12.0758782579645 1999 12.1462318460624 2000 12.1702634497147 2001 12.1675330231589 2002 12.1186772661379 2003 12.0429491058048 2004 11.9359427868348 2005 11.7550616241838 2006 11.4688319255917 2007 11.0872576177285 2008 10.6255807425047 2009 10.1149382163958 2010 9.60387226540913 2011 9.13912228296581 2012 8.76206489145177 2013 8.47033011976901 2014 8.26172840901148 2015 8.12471312182471 2016 8.04966788404296 2017 8.06423284712439 2018 8.18704696692485 2019 8.36812838389988 2020 8.53337844592128 2021 8.64548695942181 2022 8.6881834832868 2023 8.69057160590668