Year	% of government expenditure on education
1971	24.49857
1972	29.60492
1973	31.65645
1974	33.56137
1975	29.2749
1977	21.43331
1981	39.12817
1982	38.26534
1983	44.7933
1984	34.85029
1985	38.64219
1986	40.3836
1987	40.21581
1988	40.19186
1989	40.53659
1990	40.72571
1991	42.88215
1992	42.25372
1993	43.9119
1995	36.98362
1996	35.55177
2001	34.82069
2002	36.3293
2003	36.00739
2004	35.88158
2005	34.6242
2006	46.84861
2007	48.16099
2008	48.88658
2009	49.40769
2010	49.18235
2011	39.27918
2012	41.42852
2013	45.30434
2014	39.66764
2015	37.88715
2016	36.52996
2017	33.03826
2018	34.40004