Year % of male population 1960 33.3063659130693 1961 33.4577869731249 1962 33.4823301300423 1963 33.4690684661865 1964 33.4296000270834 1965 33.3452987590468 1966 33.2215832137824 1967 33.1110778189778 1968 33.0315919623674 1969 32.88751597616 1970 32.6305287803605 1971 32.3442188275381 1972 32.0403373074844 1973 31.6527825558769 1974 31.1934058576635 1975 30.7326051903009 1976 30.2565709640405 1977 29.6832701980898 1978 29.0487228458452 1979 28.4278747609701 1980 27.8687304230475 1981 27.3963113689497 1982 26.9140924880666 1983 26.3767615307161 1984 25.8461422971419 1985 25.3778619649471 1986 24.9698401775613 1987 24.5906542056075 1988 24.3043205835365 1989 24.1445357955021 1990 24.1271991318094 1991 24.0834544558445 1992 24.0118957799482 1993 24.0354177089113 1994 24.0529890047675 1995 24.0491252501721 1996 24.023254820934 1997 23.9905452167003 1998 23.9594002296963 1999 23.9116877630189 2000 23.8207315384965 2001 23.6503378413791 2002 23.398550556257 2003 23.1189251906848 2004 22.8401764158612 2005 22.5388434046414 2006 22.2687058199142 2007 22.1102707894876 2008 22.0286222732794 2009 21.9615612039984 2010 21.8810966846267 2011 21.7734037746277 2012 21.630734778307 2013 21.4201273113065 2014 21.1448383094984 2015 20.8734626784599 2016 20.6463523050173 2017 20.4596790885611 2018 20.2516003225398 2019 19.9680144355152 2020 19.7215467330927 2021 19.5340549725452 2022 19.3387518523951 2023 19.1380291177912