Year % of male primary school age 1970 23.5616207122803 1971 23.4521408081055 1972 22.677619934082 1973 22.1883201599121 1974 21.0756301879883 1975 20.9165096282959 1976 20.6782703399658 1977 19.6891098022461 1978 20.2296905517578 1979 20.5097198486328 1980 20.542049407959 1981 19.6120090484619 1982 18.2591590881348 1983 18.1459007263184 1984 17.9482307434082 1985 17.494499206543 1986 17.8351001739502 1987 17.4251804351807 1988 17.8673000335693 1989 18.0603694915771 1990 19.4642791748047 1991 19.6841297149658 1992 20.1274394989014 1993 20.1336002349854 1994 19.3431301116943 1995 19.325870513916 1996 19.322509765625 1997 19.0914993286133 1998 18.5345897674561 1999 18.3423099517822 2000 16.3966903686523 2001 15.6620197296143 2002 15.4095001220703 2003 15.2059202194214 2004 14.8113498687744 2005 14.8025102615356 2006 14.1122198104858 2007 14.0149602890015 2008 14.1266803741455 2009 14.0825099945068 2010 13.46975 2011 12.74498 2012 12.9838 2013 12.65749 2014 12.73634 2015 12.31789 2016 12.70881 2017 12.30722 2018 12.20019