Year	% of total expenditure in secondary public institutions
1998	86.078987121582
1999	73.6596298217773
2000	66.1720504760742
2001	60.688850402832
2002	60.9043998718262
2003	66.2131195068359
2004	85.5579528808594
2006	96.6050491333008
2007	96.9690170288086
2008	99.4885177612305
2009	92.6884994506836
2010	99.9870681762695
2011	99.9814300537109
2012	90.1200714111328
2013	91.2041625976562
2016	91.685432434082
2017	91.0579223632812
2018	92.8581314086914
2019	95.6382675170898
2020	99.2022171020508
2021	96.4970932006836