Year	% of total expenditure in secondary public institutions
2001	84.4154434204102
2002	85.29248046875
2003	82.3352813720703
2004	82.4991607666016
2005	83.0282363891602
2006	87.0134582519531
2007	86.8277816772461
2008	81.1700286865234
2009	85.5330200195312
2010	86.8944320678711
2011	90.295036315918
2012	89.9636611938477
2013	91.4337463378906
2014	88.4621124267578
2015	91.9669723510742
2017	90.6685562133789
2018	89.1980285644531
2019	88.3922729492188
2020	88.9783020019531