Year	% of total expenditure in primary public institutions
1998	91.4071426391602
1999	90.842529296875
2000	84.7432479858398
2002	83.3701477050781
2003	86.9875717163086
2004	83.4562606811523
2005	97.2568283081055
2006	96.62890625
2007	96.5608596801758
2008	97.9473571777344
2009	97.9178009033203
2017	94.2666702270508
2018	87.3705978393555
2019	95.8637924194336
2020	96.2612915039062