Year	% of total expenditure in primary public institutions
1999	88.8989486694336
2001	83.9871597290039
2002	85.0219802856445
2004	86.0879135131836
2007	90.7817687988281
2008	91.0827484130859
2011	92.943000793457
2016	95.1764907836914
2018	96.9244079589844
2020	98.9282073974609
2021	98.8039169311523
2022	98.6036987304688