Year	% of total expenditure in primary public institutions
1998	94.3528823852539
2001	98.3268737792969
2002	99.1953735351562
2003	99.1446914672852
2004	98.9683990478516
2005	98.8788070678711
2006	97.0569076538086
2007	96.1677780151367
2008	94.9331512451172
2009	95.4294281005859
2010	94.918586730957
2011	94.7466201782227
2012	95.919548034668
2013	96.1351699829102
2014	95.1810302734375
2015	88.7274475097656
2016	88.6820602416992
2017	88.36083984375
2018	96.7341384887695
2019	97.8984985351562
2020	98.0092926025391
2021	96.3614883422852