Year	% of government expenditure on education
1973	34.83316
1974	29.07281
1975	29.99532
1976	25.07859
1977	23.9369
1978	28.0434
1979	31.62969
1981	31.63084
1982	30.72102
1983	29.3477
1984	30.17456
1985	28.12445
1986	28.05024
1987	29.21888
1988	23.89599
1989	25.96143
1990	24.33905
1991	22.77983
1992	22.33633
1998	23.57741
2002	25.02397
2004	21.09898
2007	21.78029
2008	23.11467
2009	21.98299
2010	21.64769
2011	14.78764
2012	22.72691
2013	20.23959
2014	21.017
2015	24.27479