Year	% of central government expense
2005	0.6347672019982258
2006	0.6240068540558649
2007	0.5444328859015425
2008	0.5388459855301233
2009	0.6076332137082051
2010	0.7881623152155878
2011	0.7621789642396404
2012	0.5669632273810726
2013	0.5020599108078816
2014	0.5583026678316737
2015	0.6589909428655388
2016	-0.15891602220636591
2017	-1.5590444237768806
2018	0.7048556921592455
2019	1.1508214529239529
2020	1.7741190796910662
2021	0.7193612121637778
2022	0.0782047708996522