Year	% of total expenditure in secondary public institutions
1998	95.9208984375
1999	96.0896835327148
2000	94.4475784301758
2001	93.1314315795898
2002	91.787467956543
2004	94.8647613525391
2005	94.6236114501953
2006	95.1604537963867
2007	93.2849502563477
2008	92.8899078369141
2009	94.5865707397461
2010	93.9366226196289
2011	94.1712417602539
2012	92.5086517333984
2013	94.3498229980469
2014	93.8419570922852
2015	96.7785415649414
2016	97.5982284545898
2017	97.729133605957
2018	97.1097564697266
2019	97.2191696166992
2020	96.6359634399414