Year	% of government expenditure on education
1971	24.58131
1972	27.04488
1973	20.53477
1974	19.14795
1975	22.95178
1976	22.84042
1977	24.07422
1978	27.0656
1980	31.84732
1981	30.73586
1982	3.07927
1983	28.35589
1984	27.96404
1985	26.66659
1990	31.76391
1992	34.65119
1996	40.02293
2004	30.34683
2005	28.35577
2006	29.88298
2007	30.69473
2008	30.84998
2009	45.5057
2010	27.77816
2011	28.65495
2012	32.79963
2013	38.87206
2014	29.23212
2015	29.5277
2016	30.43803
2017	28.49483
2018	29.38676