Year	% of total expenditure in primary public institutions
1998	91.9400787353516
1999	91.1140518188477
2001	93.9544296264648
2002	95.3095016479492
2004	94.8506774902344
2005	95.1097869873047
2008	95.7670135498047
2009	90.4514694213867