Year	% of central government expense
2007	5.287899378140111
2008	4.9844087383466045
2009	3.703013300827547
2010	4.326260005555662
2011	7.895407636855252
2012	6.807876645230227
2013	3.9523157876841615
2014	1.8267424070298983
2015	1.9375259786473424
2016	3.969789918074352
2017	10.161985957702315
2018	5.760401337701611
2019	2.9325854136003247
2020	2.0547810602001704
2021	2.13823381236818
2022	2.153116685255243