Year	% of central government expense
2004	21.92950523554503
2005	24.33181592245848
2006	20.88037236200739
2007	27.976804198568793
2008	64.2532773403707
2009	97.90529288951224
2010	82.93474668920533
2011	92.5468289053874
2012	36.167383507912525
2013	29.293126725685507
2014	28.55459267182231
2015	26.8135488095173
2016	20.361398483122436
2017	46.90962004303596
2018	35.143750704224196
2019	43.09926141962083
2020	52.67659111831282
2021	31.16716203295321
2022	32.547475660332545