Year % of female population 1960 1.13895291864139 1961 1.20993591022006 1962 1.25808815118698 1963 1.29964974319305 1964 1.33642286910838 1965 1.37591776715229 1966 1.42248728234786 1967 1.47995440271278 1968 1.55098109860872 1969 1.64222812476682 1970 1.74161442519428 1971 1.81661254564325 1972 1.85517726770323 1973 1.87723500553026 1974 1.8947560046829 1975 1.91207760309329 1976 1.93849940846901 1977 1.98059273018015 1978 2.03450046430327 1979 2.08889115729121 1980 2.17851032155283 1981 2.28837661310931 1982 2.36196510676381 1983 2.41692699136003 1984 2.46982815719645 1985 2.51867647249965 1986 2.55061150582782 1987 2.53877551170815 1988 2.48596450652585 1989 2.43082173808219 1990 2.40102512387175 1991 2.41658039756983 1992 2.49095775341043 1993 2.6107857313417 1994 2.7469336325068 1995 2.89710244697775 1996 3.00243036791124 1997 3.03948994981374 1998 3.06184359384632 1999 3.08313183191869 2000 3.12532542810044 2001 3.16269153628138 2002 3.17986477088302 2003 3.21718335827914 2004 3.25525561171085 2005 3.26536151289088 2006 3.27805705484372 2007 3.28772230582447 2008 3.26095115789519 2009 3.21126756044987 2010 3.13860416769315 2011 3.01827315617392 2012 2.85875077353402 2013 2.71963182579986 2014 2.65334752414128 2015 2.67246329692762 2016 2.83450012153002 2017 3.16705213287147 2018 3.56987140676935 2019 3.9902499748404 2020 4.42530606150905 2021 4.78602280300259 2022 5.01119723778357 2023 5.17844359403314