Year	% of total expenditure in secondary public institutions
1998	96.4381484985352
2000	95.5956497192383
2011	96.3277969360352
2012	96.8901214599609
2013	97.4431762695312
2014	97.7713623046875
2016	90.7168426513672
2017	90.7907791137695
2018	92.2241287231445
2019	92.4228286743164
2020	94.9030075073242