Year	% of total expenditure in secondary public institutions
2002	95.7596893310547
2003	96.0836715698242
2004	96.5393981933594
2007	92.2392120361328
2010	91.971076965332
2011	88.9868011474609
2012	89.4275665283203
2016	93.485221862793
2020	94.5282974243164
2021	93.6947784423828
2022	94.1885681152344