Year % of female population 1960 3.26085852869557 1961 3.27676027747765 1962 3.29478789994331 1963 3.30880243585847 1964 3.31166929952586 1965 3.30305340117946 1966 3.28346469079868 1967 3.25304110230373 1968 3.21746936268276 1969 3.18349128251004 1970 3.15292684714961 1971 3.12507358526603 1972 3.09984860365727 1973 3.07620947436934 1974 3.05247070151573 1975 3.0282384418222 1976 3.00436000513441 1977 2.98085626775384 1978 2.95811163752109 1979 2.93650314769002 1980 2.91595820842096 1981 2.89665221924711 1982 2.87925616288084 1983 2.86334721844229 1984 2.84786547586457 1985 2.83276572435638 1986 2.81987955443633 1987 2.81034875104953 1988 2.80250796656842 1989 2.7939490001943 1990 2.7845133780216 1991 2.77489606531465 1992 2.7662100056434 1993 2.76184494265642 1994 2.7657181135104 1995 2.77822017487305 1996 2.80434148981943 1997 2.84013389410123 1998 2.87684694205491 1999 2.90560453263912 2000 2.92869504729774 2001 2.94676550113263 2002 2.95627395629794 2003 2.96201843530153 2004 2.97005199366435 2005 2.97840350634888 2006 2.98063333270972 2007 2.98253974314664 2008 2.98560312722515 2009 2.99139731840056 2010 3.0014325545313 2011 3.01529692057625 2012 3.03456966200173 2013 3.06037143357917 2014 3.09016902433313 2015 3.12228780366862 2016 3.15705938940862 2017 3.1920604735519 2018 3.22559216519891 2019 3.26098247290958 2020 3.29928378676836 2021 3.33889515440101 2022 3.38124976778067 2023 3.42650386008683