Year % of female population 1960 3.34563525584692 1961 3.24428406096438 1962 3.12364698030623 1963 3.00713012588536 1964 2.93428236311334 1965 2.91775088886952 1966 2.95028709579934 1967 3.02796771936936 1968 3.13307924925756 1969 3.24016657711615 1970 3.33520346132857 1971 3.42128265934328 1972 3.4825238105902 1973 3.51293144781976 1974 3.52049343848242 1975 3.50138874783077 1976 3.4588904353565 1977 3.4104034550703 1978 3.35362029065925 1979 3.27100617676104 1980 3.16578727603287 1981 3.04437649599291 1982 2.91217779715796 1983 2.77605106744165 1984 2.64915062183265 1985 2.54594676704478 1986 2.47120109523723 1987 2.42404573372004 1988 2.40242141572029 1989 2.4079895099751 1990 2.44670659611162 1991 2.52140645604383 1992 2.62645674339418 1993 2.73980834491378 1994 2.77522359391266 1995 2.8119730903517 1996 2.91276090389489 1997 2.98962428011029 1998 3.07619630400196 1999 3.1578231115242 2000 3.23481955229395 2001 3.32194969416486 2002 3.41183699250915 2003 3.49635367680503 2004 3.57367487071208 2005 3.65193840907225 2006 3.72475660389282 2007 3.76659112915859 2008 3.76664544170981 2009 3.73045500150221 2010 3.65884926898581 2011 3.55984539064843 2012 3.4626210404722 2013 3.39069745458746 2014 3.35123832981727 2015 3.34826737169064 2016 3.38077828186169 2017 3.43657719836177 2018 3.50071483219554 2019 3.56565355485272 2020 3.6294009251821 2021 3.69244128588537 2022 3.76263998600842 2023 3.85528638909871