Year % of male population 1960 0.330270922746781 1961 0.316061062137175 1962 0.30164585844893 1963 0.286520101253712 1964 0.269386461529596 1965 0.269535515951391 1966 0.29236462885056 1967 0.323853860945248 1968 0.362320394135984 1969 0.40388330030354 1970 0.445138968224177 1971 0.459585471927281 1972 0.443047072830009 1973 0.422092625305507 1974 0.403586132494533 1975 0.388742982730017 1976 0.376220114773141 1977 0.364381876580332 1978 0.350905382536108 1979 0.333159325506264 1980 0.314658588397492 1981 0.306081860042833 1982 0.308826718716114 1983 0.313133366728637 1984 0.315099673559978 1985 0.314537992981578 1986 0.311912566241274 1987 0.308596351956786 1988 0.305797993443155 1989 0.302370874163918 1990 0.296670749947996 1991 0.294216194654966 1992 0.299240814969429 1993 0.309578657947537 1994 0.322546827451808 1995 0.336090572242807 1996 0.348151971696186 1997 0.358251171706622 1998 0.366491419276539 1999 0.371990147287991 2000 0.375979722120597 2001 0.381306252239652 2002 0.388073026438464 2003 0.396547601400955 2004 0.399372543363023 2005 0.387662661033162 2006 0.365338644071235 2007 0.339779425478128 2008 0.314341645923525 2009 0.292701408317781 2010 0.286406025468187 2011 0.28972856519357 2012 0.290035516286082 2013 0.320540911995102 2014 0.382507055596124 2015 0.407033626609021 2016 0.390581573739874 2017 0.368286674917808 2018 0.349036581780569 2019 0.342186360863051 2020 0.346468498419217 2021 0.357453561576824 2022 0.379029137282545 2023 0.416930196305541