Year	% of government expenditure on education
1977	17.34922
1978	16.98913
1979	15.48839
1980	18.856
1981	12.45432
1987	14.59235
1988	17.76359
1989	16.93437
2000	16.68292
2007	19.75947
2008	24.98727
2010	30.68117
2011	37.64952
2012	36.48545
2013	41.71371
2015	42.62479
2016	52.82524
2018	38.25006