Year	% of government expenditure on education
1970	22.07208
1971	24.87037
1972	25.68135
1974	23.29068
1975	18.55287
1977	17.29184
1983	9.80441
1984	6.62191
1987	4.59564
1988	4.94084
1990	4.6246
1992	2.72439
1993	2.44068
1994	1.92502
2006	17.62346
2007	17.51542
2009	19.03526