Year	% of GDP
2000	3.47200228591201
2001	3.7920732568988536
2002	3.630528870540878
2003	4.500536766863238
2004	4.533523354330896
2005	4.272949566961616
2006	4.221631605679299
2007	4.162855118888847
2008	3.9698088339526882
2009	4.272561320475058
2010	3.8627271505255054
2011	3.7260050773976876
2012	3.604411323214445
2013	3.7509685380748805
2014	3.6945869992343763
2015	3.961258776571774
2016	4.301774961078544
2017	4.1641712948632605
2018	3.8666008719341876
2019	3.8979195879577695
2020	4.4546612421874245
2021	4.552758147230116