Year	% of government expenditure on education
1971	48.51524
1972	44.22669
1973	40.77267
1974	36.56672
1975	28.23474
1977	18.48877
1981	42.03109
1982	40.71713
1983	39.03101
1984	37.3231
1985	40.69379
1986	39.42034
1987	41.0082
1988	41.11061
1989	39.96349
1990	38.73985
1991	33.69476
1992	33.75249
1993	31.91252
1995	26.43266
1996	29.09955
2001	25.78937
2002	25.94668
2003	24.19935
2004	23.22785
2005	22.43949
2006	28.393
2007	28.67484
2008	27.86351
2009	25.40941
2010	24.68077
2011	27.21379
2012	25.4062
2013	26.2146
2014	26.88802
2015	26.73435
2016	28.85249
2017	30.12441
2018	33.07452