Year	% of government expenditure on education
1970	25.15416
1971	25.90204
1972	28.3126
1973	27.36259
1974	27.05249
1975	28.64925
1976	29.29199
1977	29.98495
1978	30.35244
1979	30.48608
1980	30.59395
1981	30.05903
1982	29.56016
1983	30.07887
1984	30.28846
1985	29.00031
1986	27.76032
1987	31.97841
1988	30.20054
1990	33.25415
1991	32.59294
1993	31.19357
1994	30.94039
1995	30.11758
1996	29.32645
1998	28.89228
2015	30.12593
2016	31.92546