Year % of male population 1960 0.60897676866401 1961 0.570847573897811 1962 0.533304570839625 1963 0.49653132373138 1964 0.468300540789322 1965 0.445562423859586 1966 0.429175054753003 1967 0.416802344513188 1968 0.401880416591159 1969 0.390682279992459 1970 0.382068525174299 1971 0.374091383732601 1972 0.370699733216095 1973 0.371585992095173 1974 0.376558045401029 1975 0.387507452066386 1976 0.408066203747741 1977 0.438703846660767 1978 0.473580191669463 1979 0.509921294756679 1980 0.551287099698715 1981 0.610659275750829 1982 0.680757319946912 1983 0.740614395748424 1984 0.793983941697107 1985 0.848120621599516 1986 0.895339981225314 1987 0.934191588743786 1988 0.963868159751896 1989 0.979935081499987 1990 0.979280395931679 1991 0.987608882345725 1992 1.02249845274105 1993 1.06503020623568 1994 1.09830238772669 1995 1.12362457314339 1996 1.14309323784603 1997 1.15519925681894 1998 1.1700031830969 1999 1.18306512024385 2000 1.19047619047619 2001 1.20036934441367 2002 1.22359040829553 2003 1.26142516785792 2004 1.31144119386371 2005 1.37565398153567 2006 1.45007680491551 2007 1.52961309786348 2008 1.61044575154135 2009 1.69425199441475 2010 1.77427568277452 2011 1.8517686995411 2012 1.92602893106749 2013 1.99353350407789 2014 2.06032169134427 2015 2.12602106768613 2016 2.19136172212649 2017 2.25169362899345 2018 2.30429292929293 2019 2.33241043711721 2020 2.31126249204626 2021 2.22330808697777 2022 2.09246523579202 2023 1.98622730635707