Year	% of total expenditure in secondary public institutions
2002	79.526008605957
2003	86.8128204345703
2006	92.4043731689453
2007	81.6493911743164
2008	86.9846267700195
2012	86.4056396484375
2015	88.8093338012695
2016	89.1663284301758
2017	87.7549591064453
2018	88.2440338134766
2019	90.0555114746094
2020	86.5105972290039
2021	75.4954299926758