Year	% of total expenditure in secondary public institutions
1998	86.6666717529297
1999	92.0770721435547
2000	88.5024719238281
2001	98.4592819213867
2002	88.2424697875977
2005	79.5713577270508
2015	66.7104873657227
2018	82.2001800537109
2021	90.0124816894531
2022	75.2510833740234