Year % of male population 1960 19.4737588404513 1961 19.5986314356213 1962 19.7132231724143 1963 19.8107770457412 1964 19.8855317943763 1965 19.9354942215879 1966 19.9604521741926 1967 19.9650465894082 1968 19.961611753359 1969 19.9794953907266 1970 20.0741136788938 1971 20.2181676661569 1972 20.3543932834824 1973 20.4748909566033 1974 20.56356326398 1975 20.6256808879641 1976 20.6654278589632 1977 20.6747516006541 1978 20.6518261283425 1979 20.5991577853335 1980 20.4938176888155 1981 20.3451208097623 1982 20.1836149538873 1983 20.0506467736521 1984 19.976377822615 1985 19.9499953022243 1986 19.9339698162278 1987 19.9066207437779 1988 19.8761167246812 1989 19.8501296304858 1990 19.8209317339261 1991 19.7869974093036 1992 19.7682734467331 1993 19.769966141078 1994 19.7871410355514 1995 19.8208419108696 1996 19.8513065613179 1997 19.8457778620928 1998 19.8199119706708 1999 19.7717766974748 2000 19.6860063515539 2001 19.5519207190361 2002 19.4247401560054 2003 19.324386018883 2004 19.2462407453331 2005 19.1840125870115 2006 19.1326636113267 2007 19.0794559862037 2008 19.0035751712987 2009 18.8975633206436 2010 18.7589363599629 2011 18.6017884668697 2012 18.4129897161481 2013 18.184859149877 2014 17.9149513637663 2015 17.6161108683089 2016 17.308424827808 2017 17.0066646070683 2018 16.7174983251307 2019 16.4502935151476 2020 16.2160367810489 2021 16.0148335873312 2022 15.8443330908328 2023 15.692912943979