Year	% of government expenditure on education
1970	14.18226
1971	18.30647
1972	14.76643
1973	15.43898
1974	14.23005
1975	16.06815
1976	17.23334
1977	17.58817
1978	17.99438
1979	21.70023
1980	18.69236
1981	18.71473
1982	18.05561
1983	13.05641
1984	11.34211
1985	17.33347
1986	19.15257
1987	15.05165
1991	20.84587
1992	24.7041
1993	28.78335
1994	20.80363
1995	22.06442
2000	19.41007
2004	18.04966
2005	25.75265
2015	11.83535
2016	12.33514
2017	8.91604