Year % of male population 1960 3.77210696575236 1961 3.74475992849102 1962 3.72054531670748 1963 3.69692488742225 1964 3.67028480191852 1965 3.640793007725 1966 3.60820408577702 1967 3.57175676041679 1968 3.53636102678789 1969 3.50852159585629 1970 3.49001322555515 1971 3.48096456833189 1972 3.48257658310124 1973 3.4916361380468 1974 3.50256115781595 1975 3.51461922341175 1976 3.52790503150832 1977 3.54091037839463 1978 3.55558849990029 1979 3.57678054939955 1980 3.60251076160492 1981 3.62911281755672 1982 3.6602924540793 1983 3.69640629653932 1984 3.72906287447452 1985 3.75214578578252 1986 3.75982880596942 1987 3.73372744257845 1988 3.64974691466244 1989 3.49724899552789 1990 3.45443254431468 1991 3.55769889736594 1992 3.68425124109261 1993 3.85107288958655 1994 4.06775178558544 1995 4.19209859748329 1996 4.19905518953293 1997 4.19931302358348 1998 4.1967941161145 1999 4.19358419358419 2000 4.18912100998828 2001 4.18290076887248 2002 4.17328097385947 2003 4.15918311052379 2004 4.14021129631074 2005 4.11448396406836 2006 4.08234765046352 2007 4.04471245380974 2008 4.00003811527389 2009 3.94956854622842 2010 3.89761315290333 2011 3.84725159099834 2012 3.80278400895795 2013 3.76646600911254 2014 3.73930505303015 2015 3.72309031265957 2016 3.71558530206493 2017 3.71365519739251 2018 3.71858428305115 2019 3.72938530892253 2020 3.74215811063839 2021 3.75380538966917 2022 3.7587347028217 2023 3.75229148276883