Year % of female population 1960 3.57110293592966 1961 3.5871617978594 1962 3.60040136737019 1963 3.61166573563492 1964 3.62356888673908 1965 3.63613409351337 1966 3.65003064702408 1967 3.66590816266993 1968 3.68235119151623 1969 3.69747952425436 1970 3.71125756623302 1971 3.72334542017904 1972 3.73323442158251 1973 3.7433242907628 1974 3.7566407285033 1975 3.7727595896672 1976 3.79201615592791 1977 3.81589784246865 1978 3.8406150377376 1979 3.85977339261664 1980 3.87107949668104 1981 3.87635921388954 1982 3.87680293473473 1983 3.87323905319129 1984 3.86734214392158 1985 3.86120661417079 1986 3.85487836009753 1987 3.84842948733647 1988 3.84370361738991 1989 3.84357625214964 1990 3.84840436682337 1991 3.85368826380251 1992 3.85438469433637 1993 3.82090149502986 1994 3.7749829187925 1995 3.68772712997954 1996 3.56850347694988 1997 3.46983108639368 1998 3.40197501809516 1999 3.3489009847509 2000 3.33671876530792 2001 3.36988716222118 2002 3.39926826589156 2003 3.43125439482053 2004 3.46681161831968 2005 3.50359370036296 2006 3.54061673522423 2007 3.57914651611977 2008 3.61865353673311 2009 3.6577764812592 2010 3.69818745345664 2011 3.7398153485922 2012 3.7800811050725 2013 3.81868391210467 2014 3.85628630355529 2015 3.89337239201594 2016 3.92767298543786 2017 3.95518664012951 2018 3.97504995959739 2019 3.99141355094089 2020 4.00243015388201 2021 4.00627537514882 2022 4.00556438536155 2023 3.99759479008143