Year % of male population 1960 18.7078627033324 1961 18.6847430739443 1962 18.6471013515277 1963 18.5991434251421 1964 18.5504110200372 1965 18.5072606582434 1966 18.4849102604263 1967 18.4991593931881 1968 18.5533709695834 1969 18.6497313544075 1970 18.7896558147267 1971 18.9740825636839 1972 19.1678384448222 1973 19.3227733699142 1974 19.4200035771192 1975 19.4520996616165 1976 19.4014847265745 1977 19.2903537082519 1978 19.1641722691835 1979 19.0324282527793 1980 18.8863822841844 1981 18.7157642324838 1982 18.5329753661192 1983 18.351068182472 1984 18.1834329100384 1985 18.0566962419824 1986 17.9763073372146 1987 17.9455224593287 1988 17.9637244678101 1989 18.0138112293319 1990 18.0912443008333 1991 18.1916997409463 1992 18.2839480549398 1993 18.3567286507904 1994 18.4214092191033 1995 18.4690417248002 1996 18.4913245538771 1997 18.4811680296749 1998 18.4173027617942 1999 18.2886915022897 2000 18.0903403208061 2001 17.845381783091 2002 17.5843874196919 2003 17.3320813718803 2004 17.1110896278372 2005 16.9354661462111 2006 16.8009956301015 2007 16.6943776006323 2008 16.6045727698359 2009 16.5179799708532 2010 16.4152763014961 2011 16.2635172037747 2012 16.0615277209284 2013 15.8311207117975 2014 15.5758482440067 2015 15.3191214081142 2016 15.1147035796523 2017 14.9684083126776 2018 14.8492382077691 2019 14.746162267298 2020 14.6522639322845 2021 14.5424738106108 2022 14.4142159410168 2023 14.2830585253826