Year	% of government expenditure on education
1970	20.68645
1971	20.20762
1972	23.13863
1973	22.3775
1974	20.38358
1975	21.84598
1976	21.37212
1977	21.5846
1978	21.8317
1979	21.32021
1980	20.99808
1981	20.99206
1982	20.80083
1983	19.60565
1984	17.87355
1985	27.60823
1986	27.19401
1987	23.77715
1988	25.04237
1990	18.98446
1991	19.43047
1993	22.60037
1994	22.64591
1995	23.0686
1996	23.46146
1998	24.85826
2015	22.34611
2016	21.22068