Year	% of total expenditure in secondary public institutions
1998	95.407470703125
1999	96.1634902954102
2002	92.3865432739258
2003	94.8104476928711
2004	94.4624481201172
2005	94.6094207763672
2006	92.3969879150391
2007	93.9812164306641
2008	93.8162536621094
2009	94.8515014648438
2010	94.9363021850586
2011	95.8774566650391
2012	96.5645065307617
2014	96.6251831054688
2015	97.1880187988281
2016	97.0506820678711
2017	95.2905883789062
2018	93.3686294555664
2019	93.923942565918
2020	94.8512191772461