Year	% of total expenditure in secondary public institutions
1998	100
1999	100
2000	100
2001	100
2002	92.3250579833984
2003	92.7593612670898
2004	92.7931365966797
2005	92.5124893188477
2006	92.7476501464844
2007	92.489143371582
2008	92.8195571899414
2009	92.6343307495117
2010	93.0245971679688
2011	92.3871765136719
2012	92.7483291625977
2013	93.4338684082031
2014	93.2436599731445
2015	93.5811080932617
2016	94.1740188598633
2017	95.1881866455078
2018	95.1539077758789
2019	94.9449996948242
2020	94.9728698730469