Year	% of total expenditure in secondary public institutions
1998	92.2387924194336
1999	92.60607528686525
2000	93.4654998779297
2001	92.7447280883789
2002	92.3558006286621
2003	92.5681533813477
2004	92.7931365966797
2005	93.5292205810547
2006	92.3969879150391
2007	93.1802978515625
2008	93.1952667236328
2009	93.3477897644043
2010	91.9184875488281
2011	93.5610733032227
2012	93.0627593994141
2013	92.3727035522461
2014	94.1052169799805
2015	93.6944122314453
2016	93.60965347290039
2017	93.7734909057617
2018	92.5518417358398
2019	92.6933975219727
2020	92.08351135253905