Year	% of government expenditure on education
1971	15.77897
1972	16.69987
1973	17.0644
1974	18.0112
1975	18.96901
1976	21.67844
1977	14.91662
1978	15.04494
1979	15.01792
1980	15.87042
1981	15.9244
1982	24.38568
1983	32.48239
1988	34.03667
2008	32.59053
2009	34.41669
2010	35.0615
2011	35.63068
2012	38.03522
2013	35.28406