Year	% of government expenditure on education
1973	42.12786
1974	40.86471
1975	37.03899
1976	34.41155
1977	34.22582
1978	36.38936
1979	31.84017
1980	33.95797
1981	34.4131
1982	33.21083
1983	32.65835
1984	35.15268
1985	33.88333
1986	34.28479
1987	34.0609
1988	34.19255
1989	36.02484
1990	33.34225
1991	32.87037
1995	34.79914
1998	40.49369
1999	38.93294
2008	35.53307
2009	37.72544