Year	% of total expenditure in primary public institutions
1998	84.9130020141602
1999	88.8612365722656
2000	89.4068984985352
2001	90.0984878540039
2002	90.0346221923828
2003	89.9922714233398
2004	90.697868347168
2005	92.0889511108398
2006	92.245246887207
2007	92.0832672119141
2008	90.2806167602539
2009	90.1981582641602
2010	90.148063659668
2011	90.463493347168
2012	89.2176513671875
2013	88.2119827270508
2014	88.8524322509766
2015	88.811653137207
2016	88.5053863525391
2017	87.97216796875
2018	86.2370986938477
2019	88.0154800415039
2020	88.2753295898438