Year	% of central government expense
2005	1.301445495523827
2006	1.2223712126050956
2007	0.8439319818510406
2008	0.9192072863812242
2009	1.3719367710214234
2010	1.175955770148823
2011	1.2458027364205535
2012	1.069437669155959
2013	1.073092277252399
2014	2.4150278331067203
2015	4.260646466306519
2016	4.870207209666656
2017	3.1342710079391702
2018	2.7972488578448176
2019	2.2010705286023255
2020	4.011191037574364
2021	3.332878372553141
2022	30.63699233182134