Year % of male population 1960 19.5443153201441 1961 19.5725366206717 1962 19.6190153930857 1963 19.6885640401411 1964 19.753133776286 1965 19.791936608524 1966 19.8303621126446 1967 19.879260049624 1968 19.9570964118349 1969 20.0888843778094 1970 20.2653222039249 1971 20.4703239231718 1972 20.6953828196898 1973 20.9070208479615 1974 21.1105480344603 1975 21.3123610576386 1976 21.4824489139826 1977 21.5747157763588 1978 21.604001626555 1979 21.5951491688786 1980 21.5488215488216 1981 21.5075658445423 1982 21.4410883251966 1983 21.3174196467393 1984 21.1852116116924 1985 21.0271948416371 1986 20.7730291894493 1987 20.4478063540091 1988 19.96716276315 1989 19.5731968099826 1990 19.2215896875938 1991 18.7461374716748 1992 18.3268085467812 1993 18.0236784206587 1994 17.9989451945163 1995 17.7688636220841 1996 17.1349005701099 1997 16.4803428066669 1998 15.8448688311005 1999 15.318398640782 2000 15.0064593173765 2001 14.8561399172361 2002 14.7449421758254 2003 14.6719593746076 2004 14.6228047514367 2005 14.5844016482989 2006 14.5704604537425 2007 14.5928426220705 2008 14.5966870295158 2009 14.5413016494966 2010 14.4387146470302 2011 14.31466456454 2012 14.1848018465804 2013 14.0172400403821 2014 13.8048396776445 2015 13.579420029445 2016 13.3455036550921 2017 13.0756941214331 2018 12.7726382957973 2019 12.4626380430527 2020 12.1845964267916 2021 11.9451430772831 2022 11.7493084991286 2023 11.5798779933989