Year	% of government expenditure on education
1971	18.27342
1972	16.46012
1973	18.1841
1974	24.26624
1975	17.85805
1976	18.85294
1977	18.40538
1978	17.3648
1979	19.2698
1980	20.88837
1981	17.58321
1982	19.71341
1983	20.20956
1984	20.46594
1985	19.26839
1986	18.1811
1987	20.09138
1989	15.73442
1990	16.46105
1991	17.63769
1992	14.6991
1993	15.94313
1994	14.5341
1995	13.86078
1996	13.43173
1997	11.88239
2013	32.23326
2014	22.32371
2015	22.78857
2016	22.20075
2017	22.11033