Year % of male population 1960 31.6358743461001 1961 31.7540227321462 1962 31.6292439868903 1963 31.5116327183026 1964 31.5042017957089 1965 31.6017597046234 1966 31.3470144976825 1967 30.8662578065309 1968 30.4752275242749 1969 29.9942890973911 1970 29.4788896151708 1971 28.9149280425776 1972 28.2691930037088 1973 27.5721719442794 1974 26.8911297349075 1975 26.2104177838135 1976 25.5278961030207 1977 24.9116163769778 1978 24.3682520251389 1979 23.9019545167763 1980 23.5481514870895 1981 23.3012824195136 1982 23.121236422377 1983 22.9468943415856 1984 22.7638923264748 1985 22.5704506300631 1986 22.397660201905 1987 22.3317880271748 1988 22.3669822621803 1989 22.4437099784839 1990 22.5501715609427 1991 22.6683377758282 1992 22.7664952272438 1993 22.8255363188101 1994 22.8183419754532 1995 22.7463171886433 1996 22.6497964038647 1997 22.5646192349967 1998 22.4915651386768 1999 22.4081462690597 2000 22.2858291945764 2001 22.1268969774469 2002 21.970407685721 2003 21.8142367090233 2004 21.6235732655591 2005 21.4028336014281 2006 21.1981550296628 2007 21.0342335241666 2008 20.8959163287435 2009 20.75816751825 2010 20.6091061173512 2011 20.4712442885145 2012 20.3507967578774 2013 20.2284140191229 2014 20.0987237780835 2015 19.9569967970146 2016 19.8202074075963 2017 19.6895286995675 2018 19.5322010702431 2019 19.3439790733586 2020 19.1120749134286 2021 18.8431701146295 2022 18.5571391801297 2023 18.265554636622