Year	% of GDP
2000	2.080562936106222
2001	2.1044496261464665
2002	2.072159033608415
2003	2.1317825478518424
2004	2.1490719536152207
2005	2.180728462056006
2006	2.2266478919725765
2007	2.2600103772343165
2008	2.3969121736813577
2009	2.622903065520491
2010	2.5295772158901983
2011	2.547131082477498
2012	2.614457999399773
2013	2.6928807546146762
2014	2.744385570018819
2015	2.8225319058814673
2016	2.7877631372707503
2017	2.792348489433306
2018	2.775737380876287
2019	2.809433570643704
2020	3.0839402833970477
2021	3.0228789643083567