Year	% of GDP
2000	3.1258604980066114
2001	3.365199313969966
2002	3.5466716373895992
2003	3.5267702852470753
2004	3.369357935613759
2005	3.3948840957177544
2006	3.3885254872414103
2007	3.389369659682835
2008	3.50738464909628
2009	3.9171890036970627
2010	3.5489711985058308
2011	3.3216894519587687
2012	3.3564232645822982
2013	3.360021169193268
2014	3.381583525641599
2015	3.329599046906119
2016	3.379474911856254
2017	3.353911964550046
2018	3.42081275079481
2019	3.5901919239358557
2020	4.595770220902479
2021	4.565610950841019