Year	% of total expenditure in primary public institutions
1999	96.3829803466797
2000	93.7618103027344
2001	90.2399978637695
2002	83.8709716796875
2003	90.0505905151367
2004	89.9671096801758
2006	86.1558685302734
2007	83.7398223876953
2008	81.8239898681641
2009	87.0641098022461
2010	86.2965393066406
2011	87.6600799560547
2012	87.8860015869141
2013	86.7436599731445
2014	81.4904174804688
2015	82.9887084960938
2016	89.013542175293
2017	87.6732177734375
2018	83.1430969238281
2019	82.9821701049805
2020	83.6698989868164