Year	% of total expenditure in primary public institutions
1998	83.061149597168
2007	93.903923034668
2008	96.7127838134766
2009	96.5776214599609
2010	85.3099594116211
2012	86.3810806274414
2013	90.7843399047852
2014	92.7565383911133
2015	90.9773330688477