Year % of male population 1960 19.0947909789167 1961 19.1098283386998 1962 19.1488993463835 1963 19.2335385600818 1964 19.3471301133611 1965 19.4762813884839 1966 19.6261075528581 1967 19.7694190632818 1968 19.8695332305544 1969 19.9327457633534 1970 19.9747064268164 1971 19.9968713160474 1972 19.9833415371179 1973 19.9321475724569 1974 19.8253401253192 1975 19.678774791591 1976 19.526470390081 1977 19.3823325919099 1978 19.2784736590055 1979 19.223980479093 1980 19.1909019220355 1981 19.1607302292032 1982 19.1487580922533 1983 19.0924398665219 1984 19.0408674189848 1985 19.0193277034507 1986 19.0096014779032 1987 18.9920398680568 1988 18.8941615488729 1989 18.7791350481046 1990 18.6621320280675 1991 18.5356377707474 1992 18.4208523355029 1993 18.2214228290392 1994 17.9362260876062 1995 17.6723504895496 1996 17.4440878129383 1997 17.2361162271638 1998 17.0301818260634 1999 16.8550370835007 2000 16.7365425793897 2001 16.6688941806388 2002 16.636428181568 2003 16.5922669025761 2004 16.4861993882828 2005 16.3182317174442 2006 16.1689949497898 2007 16.1114563257665 2008 16.1568306474424 2009 16.2816037236856 2010 16.4845323711189 2011 16.6738683262247 2012 16.7214792059068 2013 16.664267344875 2014 16.5373490119896 2015 16.3854090853019 2016 16.2672829844852 2017 16.173763056685 2018 16.0960982489451 2019 16.0244949448903 2020 15.9188054031185 2021 15.7709722394565 2022 15.6000646541266 2023 15.4060528651579