Year	% of government expenditure on education
1970	25.78324
1971	25.52945
1972	24.11137
1973	23.49261
1974	23.23878
1975	22.93974
1976	23.39065
1977	23.56935
1978	22.79469
1979	22.58709
1980	19.60095
1981	19.41084
1982	19.29769
1983	19.57932
1984	24.00492
1985	18.0397
1986	18.29525
1987	18.25978
1988	14.35444
1989	14.99377
1990	15.27215
1991	14.37992
1992	17.34233
1993	17.49822
1994	18.54985
1995	18.68247
1996	16.53592
1998	19.56093
1999	20.02924
2000	21.01969
2001	21.09976
2002	21.15071
2003	20.69117
2004	18.70517
2005	18.89088
2006	19.14149
2007	19.71294
2008	20.01192
2009	22.05753
2010	20.11094
2011	23.39252
2012	19.08823
2013	21.33464
2014	16.44862
2015	14.33275
2016	16.07903