Year	% of central government expense
2006	201.84775487710462
2007	192.12803579971484
2008	90.60014980836317
2009	104.79720207778595
2010	77.31162015510758
2011	63.691196889049394
2012	79.11555415433297
2013	60.75844081721373
2014	54.08344146149745
2015	60.336557503526556
2016	51.14058916052424
2017	51.824263154777306