Year	% of total expenditure in primary public institutions
2003	92.8220062255859
2004	92.2093276977539
2005	92.0915298461914
2006	91.938591003418
2007	91.568977355957
2008	91.0511703491211
2009	90.7194671630859
2010	90.7266464233398
2011	92.9535102844238
2012	93.0921936035156
2013	93.9046325683594
2014	93.8785934448242
2015	94.2064590454102
2016	91.33586120605466
2017	92.866569519043
2018	91.72924423217775
2019	91.653938293457
2020	90.2699127197266