Year	% of total expenditure in secondary public institutions
2002	92.3558006286621
2003	92.29393005371095
2004	91.9538345336914
2005	93.5292205810547
2006	92.2248687744141
2007	92.25763320922854
2008	92.3468704223633
2009	91.8440017700195
2010	91.7560119628906
2011	92.943000793457
2012	93.2344779968262
2013	95.38593292236331
2014	94.99070739746094
2015	93.9632835388184
2016	94.1740188598633
2017	94.5040397644043
2018	93.35564041137695
2019	93.1970901489258
2020	92.13077545166016