Year % of male population 1960 2.8686495738502282 1961 2.8644974386058397 1962 2.8593808677342607 1963 2.854114709459257 1964 2.848102337387106 1965 2.8416465294398163 1966 2.835736613627738 1967 2.829575374807761 1968 2.82389476795916 1969 2.8202173373915262 1970 2.817690886013282 1971 2.8170548492615057 1972 2.8181175727697907 1973 2.8203993774900766 1974 2.8231410398096957 1975 2.825150674716192 1976 2.82770103596578 1977 2.829427996050199 1978 2.8300343715724945 1979 2.830180637934134 1980 2.8293804702746965 1981 2.829101570386529 1982 2.8282140877816166 1983 2.8233632975535183 1984 2.8165997580968263 1985 2.809394848875371 1986 2.801898399906766 1987 2.7972768866761615 1988 2.7863192898210634 1989 2.770136931736251 1990 2.7563831458388743 1991 2.742044576859364 1992 2.725076300659724 1993 2.7042421365065357 1994 2.68107602013724 1995 2.6601692662593535 1996 2.6435576888582952 1997 2.6272197296450828 1998 2.608736793422822 1999 2.5915691030139345 2000 2.5771192097682127 2001 2.5637315188363035 2002 2.551259205030897 2003 2.540008811770145 2004 2.529716347558894 2005 2.5203223866396542 2006 2.512591830375444 2007 2.50600348216118 2008 2.5007403582129175 2009 2.498645418874701 2010 2.5001817843596426 2011 2.5039560518394794 2012 2.508055617431145 2013 2.5084478437109357 2014 2.5047287979336077 2015 2.5037062122437597 2016 2.507469902969179 2017 2.514565854970154 2018 2.525790294649627 2019 2.5390010080870327 2020 2.5397329692743416 2021 2.524287115547615 2022 2.510328079967496 2023 2.5090749175861884