Year % of female population 1960 3.567044357217 1961 3.52835017535292 1962 3.49946162429064 1963 3.47793726671554 1964 3.46078827012153 1965 3.44979288811908 1966 3.44414869148318 1967 3.44109447074884 1968 3.44626417855662 1969 3.46990230920824 1970 3.5131447762713 1971 3.57448332122973 1972 3.65426383676845 1973 3.74389892064135 1974 3.82974232527257 1975 3.9071835418806 1976 3.97656992753824 1977 4.03577237113332 1978 4.08924249587634 1979 4.14500480536183 1980 4.20084460351459 1981 4.26210221428624 1982 4.335572729986 1983 4.4069870820136 1984 4.45284525642037 1985 4.46948059812151 1986 4.46124153295831 1987 4.43195428621934 1988 4.3966159620343 1989 4.37640817462241 1990 4.39677996216818 1991 4.45557083101431 1992 4.5650263408798 1993 4.74351928674598 1994 5.00145821434415 1995 5.31488522890435 1996 5.62364150502809 1997 5.91955829447421 1998 6.2120793558959 1999 6.50105660737292 2000 6.77751571094754 2001 7.05579887230862 2002 7.32226381483519 2003 7.54488461618385 2004 7.75469424608338 2005 7.94985013615973 2006 8.08162359911677 2007 8.16496511844416 2008 8.24516417555462 2009 8.306938809198 2010 8.32880178848039 2011 8.32193840187539 2012 8.29937091144691 2013 8.26436546725619 2014 8.21689776892372 2015 8.16165444427119 2016 8.08905225833631 2017 7.97939921956115 2018 7.83280975174957 2019 7.65215341248826 2020 7.44180880411011 2021 7.24629479369242 2022 7.10635310976883 2023 7.01331280554216