Year	% of total expenditure in secondary public institutions
2003	95.933219909668
2004	94.9851303100586
2005	93.9427185058594
2006	91.4657211303711
2007	89.8422470092773
2008	91.3603363037109
2009	97.3046493530273
2010	95.1754531860352
2011	93.7843933105469
2012	91.9591522216797
2014	91.0229187011719
2015	93.920768737793
2016	92.4404678344727
2017	94.6543273925781
2018	93.540657043457
2019	93.6948394775391
2020	92.0587615966797