Year	% of government expenditure on education
1971	13.0344
1972	12.68382
1973	11.45005
1974	15.98133
1980	25.46615
1989	13.16829
1990	17.57196
2004	18.6881
2005	21.67976
2006	24.23784
2007	25.82277
2008	29.85023
2009	33.77568
2010	28.29679
2014	21.39933