Year % of male population 1960 19.5312650557631 1961 19.6720718897074 1962 19.803995349404 1963 19.9238227389475 1964 20.0265844984992 1965 20.1185992564056 1966 20.2011709797957 1967 20.2921943439449 1968 20.3678010586873 1969 20.4068451903718 1970 20.4318922117594 1971 20.4449965227813 1972 20.4516333499179 1973 20.7498572330509 1974 21.0312485356488 1975 21.0017708392249 1976 20.9716043836405 1977 20.9326515994766 1978 20.8755919000952 1979 20.8054549419606 1980 20.727777379251 1981 20.6447983098663 1982 20.5660437220246 1983 20.5003947432423 1984 20.4487035958981 1985 20.3993931661366 1986 20.3475026794561 1987 20.3059694298354 1988 20.277330158893 1989 20.2586465695623 1990 20.26022531361 1991 20.2739524066801 1992 20.2747724762465 1993 20.2342597816512 1994 20.1233004703275 1995 19.9270055029824 1996 19.6440461970236 1997 19.2838803739985 1998 18.9019630255943 1999 18.541081487571 2000 18.2037889518414 2001 17.9064837076758 2002 17.6487071978689 2003 17.3904758931666 2004 17.1272087354133 2005 16.8764474819811 2006 16.6264437641357 2007 16.3625368337613 2008 16.1419920359374 2009 15.9864483992788 2010 15.8752100490056 2011 15.8045002691408 2012 15.7524569715263 2013 15.6982421531643 2014 15.6338620904012 2015 15.5593252074292 2016 15.4531525418688 2017 15.3139670891349 2018 15.1368890572933 2019 14.9028991800557 2020 14.5846494535129 2021 14.2301598816915 2022 13.9048851220302 2023 13.6145186617057