Year	% of total expenditure in primary public institutions
1998	90.7987823486328
1999	90.5427398681641
2000	91.7727584838867
2001	88.4435806274414
2002	88.1595687866211
2003	89.7126998901367
2004	89.4388427734375
2005	90.6471405029297
2006	88.1030426025391
2007	91.3789901733398
2008	90.2287292480469
2009	87.9397506713867
2010	88.9546890258789
2011	89.8752899169922
2012	89.9027481079102
2013	88.3503799438477
2014	86.2059097290039
2015	87.8779983520508
2016	91.2414627075195
2017	90.1988220214844
2018	89.2502593994141
2019	88.451789855957
2020	90.2685394287109