Year % of male population 1960 0.306026445508244 1961 0.308360961173534 1962 0.311900486002123 1963 0.316744092578319 1964 0.321386056612734 1965 0.325859540433165 1966 0.330283719534281 1967 0.334625219067106 1968 0.338828643940212 1969 0.342806597946618 1970 0.346445744742483 1971 0.349926171645867 1972 0.353371533794616 1973 0.35673528895719 1974 0.359937248986369 1975 0.362821527879469 1976 0.364480992562409 1977 0.365230667565361 1978 0.366813829214205 1979 0.368397902316427 1980 0.37201887301288 1981 0.375756005295748 1982 0.371819095549573 1983 0.367644919073424 1984 0.369199673481507 1985 0.371387061578044 1986 0.373022645021052 1987 0.374320995796854 1988 0.375172176777904 1989 0.375788065121283 1990 0.37658171258317 1991 0.377159284496714 1992 0.37755874148751 1993 0.378100130096188 1994 0.378763876210948 1995 0.379454706874426 1996 0.380180235188655 1997 0.380963593461513 1998 0.381631979657185 1999 0.381888476223843 2000 0.381738917713818 2001 0.381361034697014 2002 0.380823217337566 2003 0.379871881662056 2004 0.378456308329704 2005 0.376712524265748 2006 0.374730971860806 2007 0.372956170266251 2008 0.371274364880195 2009 0.369377063834249 2010 0.367396902050192 2011 0.365375693186219 2012 0.363495109948496 2013 0.361816860398322 2014 0.361513866157618 2015 0.361305257604512 2016 0.359680734257884 2017 0.35741552075295 2018 0.355360932983133 2019 0.353786606103175 2020 0.347076663891628 2021 0.334294648391986 2022 0.321748459079468 2023 0.313768024612418