Year	% of GDP
2000	3.9323072277218096
2001	4.220152232469018
2002	4.198643507145454
2003	3.999631386359517
2004	3.7241811825934907
2005	3.4300193543647555
2006	3.4223171889669852
2007	3.539261238594526
2008	3.371537954022054
2009	4.314896567984904
2010	3.926966189027558
2011	3.824291680065817
2012	3.9037754973087435
2013	4.149184834128653
2014	4.495414874707627
2015	4.994469805087471
2016	5.273366892886591
2017	5.172794236764116
2018	4.858297992074262
2019	4.954509067459006
2020	5.75021150032859
2021	5.327656797746746