Year % of female population 1960 1.61932613281362 1961 1.66347919540327 1962 1.70051642117198 1963 1.73604639800896 1964 1.77395786934935 1965 1.80978460363449 1966 1.84002614983393 1967 1.87754678289847 1968 1.9200430249743 1969 1.96300488274667 1970 1.99453530096566 1971 2.00592286506705 1972 2.02928368412259 1973 2.06313620692718 1974 2.08664329582453 1975 2.11947725603839 1976 2.15603886603102 1977 2.18433425761065 1978 2.215872306835 1979 2.25713070961556 1980 2.31819675089983 1981 2.37509401281463 1982 2.41036575356297 1983 2.44515425977043 1984 2.49626680993092 1985 2.54626303775944 1986 2.59998723823967 1987 2.65788344596368 1988 2.71695108306828 1989 2.77019571300194 1990 2.83786913719832 1991 2.93632238688398 1992 3.0396835770888 1993 3.15333672115134 1994 3.26954307543443 1995 3.36947823086708 1996 3.44954248887863 1997 3.51286267115667 1998 3.57128896070051 1999 3.63197911060249 2000 3.72345061593538 2001 3.84480677875883 2002 3.96241499486417 2003 4.07537182666542 2004 4.18519180113162 2005 4.29403862673431 2006 4.38603750797193 2007 4.44682382986741 2008 4.48543341710808 2009 4.5212102448666 2010 4.56479759440403 2011 4.59582498963225 2012 4.5951202261535 2013 4.58399628286233 2014 4.57380778811937 2015 4.56148582554542 2016 4.55958126231738 2017 4.57371567799643 2018 4.60704271227983 2019 4.65694405282851 2020 4.72089818618232 2021 4.79664956261579 2022 4.88084682483747 2023 4.98138317155921