Year	% of total expenditure in secondary public institutions
1998	92.2387924194336
2012	94.4473571777344
2013	94.8556823730469
2014	94.7036819458008
2015	94.8155288696289
2016	94.4841613769531
2017	94.4370574951172
2018	93.6599273681641
2019	92.6933975219727
2020	91.4666519165039