Year	% of GDP
2000	4.959617664129553
2001	5.177708394307264
2002	5.373208186822245
2003	5.504825344613017
2004	5.500185268462684
2005	5.453160129410009
2006	5.405349477360245
2007	5.338687710556712
2008	5.435948181784803
2009	5.933925084571476
2010	5.725493407932618
2011	5.699222575804643
2012	5.6758490599291145
2013	5.649435417881694
2014	5.757085254362531
2015	5.890545800473722
2016	5.956504130580465
2017	5.867766383199871
2018	5.841584462164906
2019	5.919471201397401
2020	6.90649995871476
2021	6.509467771908343