Year	% of government expenditure on education
1975	16.07792
1976	15.93583
1977	16.62011
1978	18.92186
1979	19.44842
1980	18.59612
1981	18.77643
1982	18.39242
1986	19.14323
1987	19.06874
1988	19.52517
1993	17.38212
1994	20.43844
1995	20.497
1996	21.45639
2005	21.69712
2008	21.31581
2009	22.42587
2010	22.16835
2011	21.9973
2013	21.84376
2014	22.49618
2015	22.12875
2016	22.2845