Year	% of total expenditure in primary public institutions
2003	94.410888671875
2004	94.2964706420898
2005	92.2383804321289
2006	89.1556625366211
2007	88.0351867675781
2008	90.1463394165039
2009	96.6428680419922
2010	95.805061340332
2011	95.4010772705078
2012	94.7933120727539
2013	94.6508331298828
2014	94.1429901123047
2015	94.3704528808594
2016	92.8103408813477
2017	94.606559753418
2018	92.3411407470703
2019	93.4474411010742
2020	90.1035232543945