Year % of male population 1960 0.457709516418144 1961 0.455198058682858 1962 0.453055919564786 1963 0.450771005949869 1964 0.447085334466502 1965 0.441447827377425 1966 0.435217784461211 1967 0.428923741972786 1968 0.423397157930111 1969 0.421486206396377 1970 0.423322681364214 1971 0.428316614433515 1972 0.43218479633682 1973 0.437027099420357 1974 0.444380975253375 1975 0.4497551752491 1976 0.453174185901218 1977 0.454499700894396 1978 0.453963261401774 1979 0.452998193592778 1980 0.45161268930288 1981 0.449608348090392 1982 0.447780144558002 1983 0.446090434540379 1984 0.444337696649454 1985 0.442280356375111 1986 0.43940449732743 1987 0.434952695271262 1988 0.427043517428094 1989 0.416254811911303 1990 0.404091231359334 1991 0.390948184241076 1992 0.3779685398283 1993 0.361383573410706 1994 0.350750143271066 1995 0.34631459386206 1996 0.336085355228427 1997 0.328750408750573 1998 0.326141672629319 1999 0.324818763522473 2000 0.32296118975431 2001 0.321498414102396 2002 0.320288490196366 2003 0.319240449113806 2004 0.318601474975705 2005 0.317880035232516 2006 0.31721893927098 2007 0.316990553490356 2008 0.3173720819149 2009 0.318501471127576 2010 0.318919281590724 2011 0.318597461986185 2012 0.319288519864569 2013 0.320830142526674 2014 0.322600110963753 2015 0.323200063160625 2016 0.323306857391331 2017 0.32466989815771 2018 0.327292628538953 2019 0.330549390442731 2020 0.331676776394814 2021 0.330338686212909 2022 0.328116562500757 2023 0.327284476442552