Year	% of total expenditure in primary public institutions
1998	95.424201965332
1999	94.5502090454102
2000	91.8921508789062
2001	89.3780899047852
2002	90.0567092895508
2003	90.4722290039062
2004	91.2710571289062
2005	92.0915298461914
2006	92.9741973876953
2007	93.0699462890625
2008	91.7878189086914
2009	90.7194671630859
2010	89.2470321655273
2011	94.6455230712891
2012	89.0027770996094
2013	89.4455108642578
2014	89.4455032348633
2016	90.277961730957
2017	90.2405624389648
2018	89.7925796508789
2019	89.8574523925781
2020	89.2957611083984