Year	% of GDP
2000	1.9768645324031167
2001	1.9685587060851855
2002	1.9064611099779194
2003	1.9725356181865696
2004	2.004744359524254
2005	2.0310818190288242
2006	2.085399007864667
2007	2.115697418803059
2008	2.2397604928350323
2009	2.4939652249528717
2010	2.4278367016887525
2011	2.4705146380207705
2012	2.5304770470882327
2013	2.610925769638011
2014	2.680829089883249
2015	2.7959916069552455
2016	2.7501867993548545
2017	2.7414053548424517
2018	2.7083422267996125
2019	2.7297825357184657
2020	2.9221390779315874
2021	2.8292608751961827