Year	% of government expenditure on education
1975	21.30919
1976	34.61047
1981	45.48134
1998	35.92932
1999	28.78013
2000	31.53898
2001	27.24358
2002	31.74951
2003	27.96775
2005	47.65114
2015	41.47326
2018	39.44894