Year % of female population 1960 3.98725496844135 1961 4.13263272951955 1962 4.23605802617482 1963 4.34450266780558 1964 4.45411583604936 1965 4.50208194183258 1966 4.53581029439119 1967 4.62715592078874 1968 4.7044862193849 1969 4.77826328112825 1970 4.86111235883322 1971 4.90038385805871 1972 4.90379226767296 1973 4.89005190062805 1974 4.8360705390695 1975 4.64651033135941 1976 4.32143057161025 1977 3.93828452163258 1978 3.55786862777541 1979 3.34115990762211 1980 3.38736158695096 1981 3.60838934961188 1982 3.9456813845966 1983 4.37714762142877 1984 4.69813740215572 1985 4.91630368510492 1986 5.10737889555207 1987 5.17926374853726 1988 5.18738477011764 1989 5.21286258610136 1990 5.22291948661147 1991 5.22796970598354 1992 5.24221686767607 1993 5.20950182305043 1994 5.12259558539875 1995 5.02534921022242 1996 4.94216955770547 1997 4.87709106528335 1998 4.82623909205001 1999 4.79572778100305 2000 4.73711281518632 2001 4.63250044494365 2002 4.49130697493354 2003 4.34762869520102 2004 4.2285457304261 2005 4.12578457238485 2006 4.22786283924283 2007 4.60949122837729 2008 5.10502059937333 2009 5.60970432351501 2010 6.1318010274239 2011 6.55980770276363 2012 6.80990852449702 2013 6.99093571040504 2014 7.15163823917035 2015 7.30512129088738 2016 7.39998168430286 2017 7.44566894148208 2018 7.45561398321866 2019 7.41187444322488 2020 7.28115428248271 2021 7.06342611508114 2022 6.55684589500319 2023 6.12879650740861