Year	% of government expenditure on education
1973	39.08997
1975	33.87668
1985	33.1684
1990	30.32279
1991	35.27137
1992	32.32096
1998	33.14466
2004	39.97492
2005	40.74734
2010	30.84477
2014	29.9363
2015	30.69482
2017	32.15812