Year	% of government expenditure on education
1973	47.77323
1974	20.01239
1975	19.89488
1976	16.57108
1977	34.71283
1979	17.23619
1982	23.21167
1985	16.98413
1986	17.14248
1992	11.73708
1996	14.28773
1997	0
2002	36.72516
2004	35.83639
2005	36.22892
2006	36.21136