Year	% of total expenditure in primary public institutions
1998	93.5982284545898
1999	93.2264785766602
2000	92.3212738037109
2001	89.7435607910156
2002	89.9449081420898
2003	91.6548309326172
2004	92.8484268188477
2005	89.9815826416016
2006	91.6194915771484
2007	87.6207427978516
2008	86.2691421508789
2009	90.4565963745117
2010	90.3133773803711
2011	91.9553604125977
2012	94.5570602416992
2013	93.3127365112305
2014	92.0739288330078
2015	92.7670516967773
2016	92.4521331787109
2017	90.7772064208984
2018	91.9755096435547
2019	90.2823181152344
2020	88.9297332763672