Year	% of total expenditure in secondary public institutions
1998	91.8049163818359
1999	91.8334274291992
2000	91.9493865966797
2001	91.5808715820312
2002	89.7804183959961
2003	92.5681533813477
2004	91.9470977783203
2005	92.6815795898438
2006	91.1901626586914
2007	93.1802978515625
2008	91.9753875732422
2009	89.8122711181641
2010	90.7798614501953
2011	91.5187530517578
2012	92.421501159668
2013	91.9571914672852
2014	89.4892120361328
2015	89.3596878051758
2016	92.6881332397461
2017	92.0421295166016
2018	88.5060119628906
2019	89.007080078125
2020	91.0589599609375