Year	% of government expenditure on education
1973	18.92359
1974	17.80791
1975	17.64809
1976	16.25732
1977	19.44313
1978	17.612555
1979	16.664895
1980	18.00243
1981	19.41084
1982	20.93651
1986	19.84031
1987	20.27419
1988	20.39868
1990	20.44396
1991	20.68082
1993	19.583385
1994	20.164175
1995	20.497
1996	21.45639
1998	21.94441
2001	22.74113
2002	22.57116
2003	22.77336
2004	22.8942
2005	22.3288
2006	25.18597
2007	25.11732
2008	23.70898
2009	23.73705
2010	23.56181
2011	25.894354999999997
2012	25.794584999999998
2013	25.34026
2014	25.27111
2015	25.23977
2016	23.91108