Year % of male primary school age 1970 41.2504196166992 1971 41.2333984375 1972 40.3417205810547 1973 38.5523986816406 1974 39.4609298706055 1975 39.0329895019531 1976 37.5575408935547 1977 37.1392784118652 1978 37.0713386535645 1979 36.3154296875 1980 34.8705787658691 1981 33.462230682373 1982 33.7655410766602 1983 32.5864791870117 1984 32.2411308288574 1985 32.4435806274414 1986 32.279468536377 1987 33.097240447998 1988 33.4212684631348 1989 34.1042518615723 1990 35.8903388977051 1991 33.3817710876465 1992 33.7865180969238 1993 33.831241607666 1994 32.9769096374512 1995 31.3888092041016 1996 32.6421089172363 1997 33.6593017578125 1998 34.9240913391113 1999 36.7521591186523 2000 35.3910713195801 2001 33.478759765625 2002 31.8662395477295 2003 30.4006805419922 2004 28.9018993377686 2005 27.8074703216553 2006 26.0540904998779 2007 25.3809204101563 2008 22.4518203735352 2009 21.8899993896484 2010 21.05768 2011 20.37704 2012 19.57006 2013 20.00337 2014 18.87973 2015 18.91625 2016 18.72643 2017 18.20172 2018 18.32026