Year	% of government expenditure on education
1973	39.68655
1974	45.64344
1975	45.99906
1976	50.51443
1977	51.60037
1978	52.98971
1979	51.50321
1981	45.10263
1982	45.83018
1983	41.89108
1984	45.07321
1985	44.91928
1986	45.79503
1987	47.01337
1988	45.97624
1989	42.0274
1990	44.02566
1991	39.25569
1992	39.99952
1998	42.84794
2002	47.19542
2004	39.84703
2007	44.03464
2008	52.19563
2009	47.27325
2010	45.7106
2011	64.58281
2012	46.5654
2013	35.84567
2014	32.97972
2015	37.54411