Year	% of total expenditure in secondary public institutions
2001	96.9433517456055
2002	96.744499206543
2003	96.5826034545898
2004	96.8027114868164
2005	97.344596862793
2006	97.1573028564453
2007	96.8352584838867
2008	95.8705368041992
2009	96.4192199707031
2010	97.0614624023438
2011	96.7540969848633
2012	97.415168762207
2013	96.5973968505859
2014	97.4567565917969
2015	97.6918029785156
2016	97.0774765014648
2017	97.7174606323242
2018	98.064323425293
2019	97.8255462646484
2020	97.9462890625