Year % of female population 1960 1.86503441069583 1961 1.83736440933764 1962 1.84863809036552 1963 1.89748074935321 1964 1.97973479394928 1965 2.08525391639173 1966 2.21931991960436 1967 2.38752269343043 1968 2.56224968391391 1969 2.70660777414669 1970 2.81468193008743 1971 2.87433507576174 1972 2.87657944578398 1973 2.85459944730835 1974 2.85351308701827 1975 2.88082767154437 1976 2.94230445597023 1977 3.04197221912782 1978 3.13450116659283 1979 3.15563790559375 1980 3.09246758351365 1981 2.95295756027612 1982 2.73433974248717 1983 2.48980412715711 1984 2.30243611363375 1985 2.20869702520965 1986 2.18875983058718 1987 2.22886879424419 1988 2.32902507350084 1989 2.4926011074371 1990 2.69787457652895 1991 2.91665553398226 1992 3.12457305514118 1993 3.28804280719702 1994 3.37744064996737 1995 3.3667942647368 1996 3.2588913447815 1997 3.07900906856758 1998 2.86175734275431 1999 2.68530647980946 2000 2.65131600830181 2001 2.79600129836082 2002 3.07564697168196 2003 3.41616537050904 2004 3.73330183427188 2005 3.92672427091486 2006 3.92500516543106 2007 3.70577876952388 2008 3.31362201579369 2009 2.85304302187707 2010 2.4598986335937 2011 2.24770150202399 2012 2.26903422269714 2013 2.49645721097222 2014 2.84159168882824 2015 3.19885916004073 2016 3.4808778394094 2017 3.66434272529985 2018 3.77926374069999 2019 3.86866082328125 2020 3.93729846202282 2021 3.98706692194609 2022 4.04635404004125 2023 4.13493870957711