Year	% of government expenditure on education
1971	35.35322
1972	37.36618
1973	37.94966
1974	33.56813
1975	36.48062
1976	36.24598
1977	40.53614
1978	39.77088
1979	40.56598
1980	43.13853
1981	44.58881
1982	39.93105
1983	31.7523
1988	34.83018
2008	25.60021
2009	24.81203
2010	24.96839
2011	23.83451
2012	21.47359
2013	22.96219