Year	% of total expenditure in secondary public institutions
1998	87.2906036376953
1999	87.5576629638672
2000	89.0390472412109
2001	89.5820083618164
2002	89.7644195556641
2003	89.9442901611328
2004	89.9632568359375
2005	90.5564804077148
2006	90.4518203735352
2007	90.7323837280273
2008	90.7041625976562
2010	87.7106323242188
2011	87.2253723144531
2012	88.1686019897461
2013	87.2812194824219
2014	86.9360961914062
2015	87.6415786743164
2016	89.4411773681641
2017	89.6210174560547
2018	90.1386337280273
2019	88.7288665771484
2020	87.1404037475586