Year	% of total expenditure in primary public institutions
1998	90.7067031860352
1999	82.7779006958008
2000	74.9956588745117
2001	66.3727035522461
2002	59.8191108703613
2003	65.9623489379883
2004	86.4256362915039
2007	99.5125503540039
2008	99.6058807373047
2009	91.6332778930664
2011	100
2012	95.3547286987305
2013	97.9981079101562
2014	98.8914489746094
2015	99.0854797363281
2016	98.1388092041016
2017	99.1616516113281
2018	99.3965835571289
2019	96.7981796264648
2020	99.4299926757812
2021	98.7854614257812