Year	% of government expenditure on education
1972	41.33375
1973	40.67724
1975	37.01554
1976	36.19447
1977	38.56799
1978	43.00017
1979	42.2447
1980	38.6842
1981	40.94264
1982	40.95742
1984	43.03228
1985	42.39347
1986	46.71593
1987	46.29991
1988	45.8276
1989	48.32087
1996	43.63185
2002	44.37828
2007	42.81054
2009	38.87276