Year	% of GDP
2000	2.993317626496485
2001	3.0112844125510967
2002	2.885872766270584
2003	2.969296715579093
2004	3.0379275673867867
2005	2.990715481276972
2006	3.0753159142855053
2007	3.166816323455517
2008	3.29224472319959
2009	3.662173373840881
2010	3.609133973630898
2011	3.590328430458575
2012	3.6170763077355663
2013	3.7722270032964356
2014	3.8124155573878333
2015	4.056520403542087
2016	4.040458764424913
2017	4.087513022526878
2018	3.94222203263328
2019	3.923340356546497
2020	4.544563371096634
2021	4.4340227298417