Year % of male population 1960 16.6621163978136 1961 17.0277283230801 1962 17.2903411820118 1963 17.4502518415641 1964 17.5946353849422 1965 17.7178439744014 1966 17.8247581240449 1967 17.9184688782045 1968 17.998779192006 1969 18.070380945687 1970 18.1407290010817 1971 18.2126204101623 1972 18.2752916647711 1973 18.3236171051936 1974 18.359992014952 1975 18.3822955559361 1976 18.4148558100637 1977 18.4727152244682 1978 18.5233361383653 1979 18.5825455665627 1980 18.6068384839539 1981 18.6276529080472 1982 18.8250489646166 1983 19.0280926224924 1984 19.0687397363067 1985 19.061621042352 1986 19.0382342453233 1987 18.9890530046406 1988 18.9499033140381 1989 18.9230982264222 1990 18.8693585337763 1991 18.7794744123898 1992 18.6556821104732 1993 18.5110727245452 1994 18.3573550052511 1995 18.188952915567 1996 17.9970375045154 1997 17.7932416277501 1998 17.6076293441383 1999 17.474071692191 2000 17.3895376723487 2001 17.3376809826386 2002 17.325763489638 2003 17.3528797567559 2004 17.3899898213631 2005 17.4269691706313 2006 17.4720476242641 2007 17.4995042147122 2008 17.4895360880332 2009 17.4516198098951 2010 17.398345409609 2011 17.3260135692021 2012 17.2251409388236 2013 17.0996274742963 2014 16.9308701354818 2015 16.7648710049641 2016 16.6610403072894 2017 16.6047285709844 2018 16.5504428023043 2019 16.4700457341589 2020 16.3520562916549 2021 16.1828777398852 2022 15.9777265929262 2023 15.75962387446