Year	% of government expenditure on education
1973	7.49139
1974	9.03829
1975	18.43401
1976	18.2329
1977	18.76935
1980	17.42412
1982	11.99649
1983	20.95113
1984	21.51176
1985	18.504835
1986	19.23205
1988	19.45934
1989	15.718824999999999
1990	14.66749
1991	20.60858
1992	22.28916
1993	25.14373
1994	19.27121
1995	23.65064
1996	21.76215
1997	21.39767
2001	21.33073
2002	19.15634
2003	14.79285
2004	18.82431
2005	22.07259
2007	19.99549
2008	15.71206
2009	20.27473
2010	21.84405
2011	19.84049
2012	17.56025
2013	17.6092
2014	17.4903
2015	17.387
2016	18.22901
2017	19.25634
2018	19.59513