Year	% of government expenditure on education
1970	39.85163
1977	33.49555
1979	24.36394
1983	34.19087
1984	32.69492
2002	43.0803
2003	38.70894
2004	32.14363
2006	28.80405
2007	33.94206
2009	32.72708
2010	29.06004
2011	28.51444
2012	30.55537