Year % of female population 1960 10.2783725910064 1961 10.506958250497 1962 10.6729612144775 1963 10.7470171191423 1964 10.7296137339056 1965 10.6287538964495 1966 10.4903565582521 1967 10.3471074380165 1968 10.2256007846984 1969 10.1688148739592 1970 10.172377101511 1971 10.2282333051564 1972 10.3074056823475 1973 10.3746775674376 1974 10.423774096757 1975 10.4164245593647 1976 10.2909423604758 1977 10.0180255130338 1978 9.55315362815528 1979 8.82806355198993 1980 7.77801262115402 1981 6.51516033288716 1982 5.95049146548604 1983 6.03900577667073 1984 5.96652062704181 1985 5.61052094221747 1986 5.39349422875131 1987 5.50743403134348 1988 5.5788752302223 1989 5.50086498064091 1990 5.23253504904881 1991 5.10648086028101 1992 5.21776148962556 1993 5.30713761697711 1994 5.35593689934025 1995 5.3395289539019 1996 5.33263282327445 1997 5.35462201236431 1998 5.33562270327519 1999 5.28229391591515 2000 5.21344146862819 2001 5.25566660034589 2002 5.36741401572955 2003 5.36522119029835 2004 5.20467280843385 2005 4.853656298743 2006 4.72630660432648 2007 4.90786134693823 2008 5.08090658781722 2009 5.2128102037987 2010 5.23259116210383 2011 5.27296174236997 2012 5.36758949540958 2013 5.29534162809461 2014 5.05313900713219 2015 4.69246561858424 2016 4.43021232161504 2017 4.0445462400395 2018 3.57718075387426 2019 3.35719904537152 2020 3.23491184077512 2021 3.15073629229317 2022 3.05727752446334 2023 2.97690442771469