Year	% of total expenditure in primary public institutions
1998	100
1999	89.2501068115234
2001	87.941276550293
2002	95.3547821044922
2003	88.8203887939453
2004	95.7008285522461
2005	96.4700317382812
2006	85.5854110717773
2007	88.4547119140625
2008	86.3235778808594
2010	92.8908386230469
2016	96.5127182006836
2017	95.9503402709961
2018	93.0839233398438
2019	88.1394195556641
2021	90.0756530761719
2022	94.1845321655273