Year	% of total expenditure in primary public institutions
1998	92.4645767211914
1999	92.0783462524414
2000	94.6371765136719
2001	95.7451171875
2002	95.6488037109375
2003	97.0437774658203
2004	94.1284332275391
2005	95.2269897460938
2006	95.1570816040039
2007	97.5301666259766
2008	97.6954116821289
2009	97.2262268066406
2010	97.7165908813477
2011	98.0214462280273
2012	97.7716217041016
2013	96.559211730957
2014	95.3740081787109
2015	94.2064590454102
2016	93.0493469238281
2017	91.6796112060547
2018	91.1173477172852
2019	90.7531967163086
2020	90.1456298828125