Year	% of government expenditure on education
1970	15.06736
1971	15.08724
1972	15.36238
1973	15.23795
1974	15.67883
1975	16.14828
1976	16.10579
1977	15.1926
1978	14.84121
1979	14.96101
1980	14.94281
1981	14.29035
1982	14.95543
1983	15.67647
1984	17.42452
1985	17.66651
1986	19.80344
1987	19.78005
1988	20.45724
1989	20.63494
1990	20.34452
1991	21.29734
1992	20.96459
1993	20.51477
1995	21.50493
1996	21.05007
1998	26.23192
1999	26.18606
2000	25.00969
2001	23.64181
2002	22.57116
2003	23.5198
2004	26.12133
2005	27.28277
2006	27.16193
2007	27.75351
2008	27.19456
2009	26.196
2010	27.71448
2011	26.85606
2012	33.30418
2013	32.33793
2014	32.51695
2015	32.63359
2016	32.48871