Year	% of government expenditure on education
1971	7.66942
1972	11.61545
1973	14.25127
1974	14.18246
1975	12.90432
1976	12.70798
1977	15.67831
1978	14.2226
1979	5.9374
1980	13.80726
1983	16.25707
1984	15.40078
1985	14.60521
1986	18.86245
1987	14.32899
1988	10.78263
1990	19.1989
1992	14.61023
2005	27.86688
2007	27.49449
2009	41.50944