Year	% of central government expense
2006	7.04943575616723
2007	7.3619991991252425
2008	4.094299324211409
2009	4.582845675191802
2010	9.272923918834392
2011	2.31114235634198
2012	0.9047405002974596
2013	0.2622845702234373
2014	0.03368679206065896
2015	0.5712873935420035
2016	0.600848922265705
2017	0.573603354244476
2018	0.49711711846055745
2019	4.8392346278213445
2020	0.5023337169885806
2021	1.0092414212617078
2022	0.7394961614702724