Year	% of government expenditure on education
1971	49.56888
1972	47.3176
1973	52.69483
1974	52.23172
1975	46.98212
1976	46.54975
1977	45.58963
1978	40.69317
1980	33.69747
1981	31.82835
1982	42.16059
1983	32.37046
1984	31.24783
1985	31.43877
1990	27.09341
1992	23.85434
1996	21.27088
2001	23.32797
2002	23.28514
2003	23.3798
2004	22.97219
2005	23.10701
2006	22.20584
2007	21.47341
2008	21.39712
2009	16.28242
2010	20.93063
2011	20.50594
2012	18.65048
2013	17.54439
2014	18.85407
2015	20.94026
2016	21.33549
2017	21.69319
2018	22.08105