Year	% of central government expense
2005	4.82543952815436
2006	4.1546662864207775
2007	5.957846669293113
2008	5.261821028188841
2009	5.802907721749735
2010	3.481387408265487
2011	1.8109675529069404
2012	2.001317976966709
2013	2.363872901986653
2014	1.1041026532112919
2015	1.1207623340618158
2016	1.5908396540634033
2017	2.5304083211330375
2018	2.537389000327749
2019	1.6513572628711157
2020	4.6556966977866665
2021	2.618795105599656
2022	1.3942449250789513