Year % of primary school age 1970 24.9132900238037 1971 25.0008106231689 1972 24.2031803131104 1973 21.5586891174316 1974 20.5500907897949 1975 19.3272590637207 1976 18.7671203613281 1977 19.1440505981445 1978 20.9331207275391 1979 20.8717193603516 1980 20.0137901306152 1981 19.0262794494629 1982 18.5127391815186 1983 17.9849891662598 1984 17.2180309295654 1985 15.8393697738647 1986 14.2666797637939 1987 13.5591497421265 1988 12.6906099319458 1989 11.4076499938965 1990 11.602219581604 1991 11.2205400466919 1992 11.3330001831055 1993 11.0985698699951 1994 11.0467596054077 1995 11.6618099212646 1996 11.6704502105713 1997 12.0429496765137 1998 10.9494104385376 1999 9.35783958435059 2000 8.71448993682861 2001 8.41545963287354 2002 8.31748008728027 2003 6.75612020492554 2004 6.00953006744385 2005 5.32186985015869 2006 5.12040996551514 2007 3.86811995506287 2008 3.51269006729126 2009 3.82546997070313 2010 3.69732 2011 3.87766 2012 3.46287 2013 3.30879 2014 3.28571 2015 3.15313 2016 3.1875 2017 3.09852 2018 3.25438