Year	% of government expenditure on education
1973	35.42916
1975	45.40797
1985	36.88275
1990	30.75175
1991	33.20245
1992	29.84691
1998	59.62328
2004	52.36858
2005	52.28503
2010	45.41727
2014	44.33285
2015	44.3101
2017	44.39473