Year	% of total expenditure in primary public institutions
1998	93.6108474731445
1999	93.1752090454102
2000	91.9165802001953
2001	91.077766418457
2002	90.0031814575195
2004	92.830940246582
2005	93.1742706298828
2006	93.2655334472656
2007	92.9845275878906
2008	93.2212295532227
2009	94.6043701171875
2010	94.1575698852539
2011	94.3173980712891
2012	91.3513565063477
2013	94.7193908691406
2014	93.9988098144531
2015	96.0952835083008
2016	96.9617919921875
2017	97.7680969238281
2018	96.9968490600586
2019	96.8712997436523
2020	95.6406326293945