Year	% of government expenditure on education
1971	42.25409
1972	40.55985
1973	38.31698
1974	37.52703
1975	39.95515
1976	37.8327
1977	40.16709
1978	40.11814
1979	40.28837
1980	37.66828
1981	36.75049
1982	32.84236
1983	32.89335
1988	27.62849
2008	22.46982
2009	21.6226
2010	20.82998
2011	20.24218
2012	20.56534
2013	21.98366