Year % of female population 1960 3.20701436578684 1961 3.21096743706684 1962 3.21331157861775 1963 3.21404248241837 1964 3.21278121269779 1965 3.21037822736204 1966 3.20734702992407 1967 3.20353094698591 1968 3.19889982863168 1969 3.19357495465179 1970 3.18714774352276 1971 3.17901130549077 1972 3.16936364792791 1973 3.15863919785225 1974 3.14663248232771 1975 3.13375924361739 1976 3.12048862095199 1977 3.10694571659357 1978 3.09276338380897 1979 3.07757091297123 1980 3.06132919902217 1981 3.0437317516177 1982 3.02457317897203 1983 3.00411463650737 1984 2.98252346749637 1985 2.96009813879252 1986 2.93753205900711 1987 2.91529412236742 1988 2.89344831526851 1989 2.87111207048336 1990 2.84781199544878 1991 2.82499929204542 1992 2.80287105598292 1993 2.78154154428007 1994 2.75801495820259 1995 2.7329413361511 1996 2.70709038052493 1997 2.68239338837009 1998 2.66300126274639 1999 2.65245060210533 2000 2.64948318723014 2001 2.64674103594133 2002 2.64295453886101 2003 2.61159684715795 2004 2.53432361307705 2005 2.45798283977952 2006 2.40164021484495 2007 2.34752295396274 2008 2.31780043134902 2009 2.33044945989193 2010 2.34994893001394 2011 2.36150029206208 2012 2.37873330142657 2013 2.40041089822513 2014 2.42396019396278 2015 2.44825823773192 2016 2.47488964053965 2017 2.50259436903223 2018 2.53195603079501 2019 2.56302045538831 2020 2.59118405578698 2021 2.6157477014913 2022 2.64099949551953 2023 2.66682203042956