Year % of male population 1960 19.0040074044017 1961 18.9352847308448 1962 18.8728115536336 1963 18.8277126338231 1964 18.8043908779525 1965 18.8133228592241 1966 18.8621133092668 1967 18.9434120319962 1968 19.0529157055821 1969 19.1779763709483 1970 19.3091073014245 1971 19.4358219695974 1972 19.5589440913146 1973 19.6487961559638 1974 19.6642462325982 1975 19.6412818418469 1976 19.6043774029566 1977 19.5445913323897 1978 19.4739507886826 1979 19.4512995072689 1980 19.4586419651203 1981 19.4441635076585 1982 19.4461906616731 1983 19.4908697047785 1984 19.5631257913913 1985 19.7077874162098 1986 19.9247321234657 1987 20.1516189188438 1988 20.3728639286857 1989 20.5716925798892 1990 20.7343179652514 1991 20.8425309398144 1992 20.9019332241397 1993 20.9445008043236 1994 20.9885079485129 1995 21.1080982721645 1996 21.1731632031059 1997 21.1423698399651 1998 21.0514277332681 1999 20.8969647202556 2000 20.7538825926649 2001 20.6444985057502 2002 20.5491678668443 2003 20.4522376918959 2004 20.3785878628308 2005 20.2938658108539 2006 20.1831158983364 2007 20.0460345793177 2008 19.8883665285754 2009 19.717241474163 2010 19.5476088495428 2011 19.3789955786088 2012 19.2021184662948 2013 19.0160178321825 2014 18.7898532390782 2015 18.5161259937109 2016 18.1994749319908 2017 17.8835756875619 2018 17.6284535903227 2019 17.4201333322003 2020 17.2516151062137 2021 17.1187501426171 2022 16.9973768372966 2023 16.8518169855745