Year	% of central government expense
2001	12.282538603892396
2002	7.025675837524488
2003	10.116737094775678
2004	8.673434012903924
2005	99.92826481418984
2006	18.01460372490187
2007	6.230654330263552
2008	26.23420780059203
2009	20.18758105415117
2010	92.96283896440141
2011	16.397253370990708
2012	6.795665100632793
2013	7.728727327517084
2014	4.642037919929564
2015	4.794115290946223
2016	4.6382077756569355
2017	5.633730426688635
2018	6.040376017398121
2019	7.789668271676316
2020	10.570579351907892
2021	8.5303308759437