Year	% of government expenditure on education
1972	26.93975
1973	41.97815
1974	30.1043
1975	31.91694
1976	28.24563
1982	42.21104
1986	26.97168
1994	18.60835
1999	26.02765
2004	33.39897
2009	44.09285
2010	45.58441
2011	45.07557
2012	45.7141
2013	38.88502
2014	40.34032
2015	43.81544
2016	30.798
2018	40.27441