Year % of female population 1960 5.10750455787641 1961 5.08782464749687 1962 5.06325312480845 1963 5.03394296191856 1964 4.99910065979409 1965 4.95883103689965 1966 4.91471587166545 1967 4.86786804940957 1968 4.81785779012868 1969 4.7654598071123 1970 4.71265123584187 1971 4.66016605035483 1972 4.60882820343748 1973 4.55998801971393 1974 4.51497805230389 1975 4.47417858990632 1976 4.44018080590303 1977 4.41548576014656 1978 4.39677062114131 1979 4.37858330445822 1980 4.3601775102561 1981 4.34194991696964 1982 4.32497827640465 1983 4.31460789704023 1984 4.31440086215207 1985 4.32127027049683 1986 4.32489668950948 1987 4.30613716457738 1988 4.22499575566484 1989 4.09566136592318 1990 3.97198741381694 1991 3.8666633198519 1992 3.78970688549709 1993 3.77388397619213 1994 3.80487904627528 1995 3.83702683683846 1996 3.86247134973944 1997 3.88420633878229 1998 3.90509084973859 1999 3.9264020673868 2000 3.94548001285819 2001 3.96203784349357 2002 3.97714192805281 2003 3.98840144483402 2004 3.99604733769638 2005 4.00162556662848 2006 4.00322296898312 2007 4.00065512287253 2008 3.99680813409808 2009 3.99065797586094 2010 3.98160705269533 2011 3.97368894110989 2012 3.97099110251047 2013 3.97658622695904 2014 3.99571749491284 2015 4.03179780294499 2016 4.08365529447381 2017 4.15100383293709 2018 4.23099492859612 2019 4.31619968009703 2020 4.39921253418113 2021 4.47552413501694 2022 4.53992828059906 2023 4.58961167831866