Year	% of total expenditure in secondary public institutions
1999	95.881233215332
2000	93.8202209472656
2001	93.2379684448242
2002	85.6287384033203
2003	90.8727874755859
2004	91.2694396972656
2006	87.3037796020508
2007	84.3317489624023
2008	84.6939392089844
2009	89.1208267211914
2010	88.5694122314453
2011	88.022819519043
2012	88.0659790039062
2013	88.365348815918
2014	82.8738403320312
2015	83.3679809570312
2016	90.8116683959961
2017	88.6588363647461
2018	82.2578430175781
2019	81.3826675415039
2020	81.7303466796875