Year	% of government expenditure on education
1971	52.99174
1972	49.9859
1973	45.16518
1974	40.0257
1975	51.9748
1976	48.23884
1977	48.58042
1978	47.2761
1979	50.2997
1980	39.18076
1983	43.22694
1984	44.06326
1985	35.8869
1986	34.81558
1987	31.46757
1988	32.41047
1990	25.50395
1992	28.33573
2005	30.03084
2007	27.54638
2009	17.82233