Year	% of government expenditure on education
1970	30.51425
1971	28.55335
1973	29.32611
1974	28.04179
1975	27.22126
1976	28.18948
1977	29.52189
1978	30.5505
1981	38.64491
1982	37.08525
1983	40.72493
1984	40.01559
1986	40.84933
1987	41.57062
1988	43.38053
1989	42.7076
1990	43.1839
1991	43.6155
1998	33.36246
1999	34.16226
2000	40.67016
2001	35.37471
2002	34.13826
2003	36.45316
2004	33.64334
2005	33.94361