Year % of primary school age 1970 37.0698585510254 1971 37.1379699707031 1972 35.5790100097656 1973 33.3376388549805 1974 33.3254585266113 1975 32.0326499938965 1976 31.0852699279785 1977 29.6341400146484 1978 30.2399291992188 1979 29.7574100494385 1980 28.5627098083496 1981 27.207160949707 1982 25.8590202331543 1983 24.8686199188232 1984 24.0858993530273 1985 23.8309192657471 1986 23.076509475708 1987 23.3196907043457 1988 22.1334800720215 1989 20.6097106933594 1990 21.2064609527588 1991 20.5693893432617 1992 20.2463493347168 1993 19.6780395507813 1994 18.942289352417 1995 19.1476097106934 1996 18.5460796356201 1997 18.6579895019531 1998 18.48583984375 1999 17.8096904754639 2000 16.425329208374 2001 15.776650428772 2002 15.367790222168 2003 13.3121795654297 2004 11.7908000946045 2005 10.3284597396851 2006 9.63895034790039 2007 7.86918020248413 2008 7.63737010955811 2009 7.7989501953125 2010 7.44081 2011 7.52731 2012 6.9904 2013 6.39002 2014 6.17773 2015 6.31277 2016 6.08201 2017 5.94557 2018 5.86323