Year	% of government expenditure on education
1973	18.1841
1975	17.08569
1979	20.701905
1980	20.22869
1981	16.93226
1982	18.167065
1983	18.92831
1984	20.46594
1985	17.30815
1986	18.1811
1987	19.2426
1990	16.46105
1991	12.4171
1999	17.54497
2000	18.82241
2003	10.28111
2009	15.84816
2010	14.587105000000001
2011	11.76926
2012	14.73352
2013	21.12484
2014	16.28867
2015	17.668285
2016	22.20075