Year	% of total expenditure in secondary public institutions
2008	91.243522644043
2009	89.4916915893555
2010	87.7532196044922
2011	93.3107528686523
2012	94.7777328491211
2013	96.5659866333008
2016	97.8354568481445
2017	97.0484924316406
2018	97.3573303222656
2019	97.1860733032227
2020	97.0791931152344
2021	98.0506210327148