Year	% of GDP
2000	4.71491898874714
2001	4.934577593251759
2002	4.69280756721118
2003	4.822878423327048
2004	4.80047210740674
2005	4.781904326635077
2006	4.720917971484934
2007	4.710311856152059
2008	4.67741293158629
2009	5.020660065948274
2010	4.828816658833023
2011	4.795129246150681
2012	4.887968412382585
2013	4.980043632771102
2014	4.970343270291694
2015	5.129686260908563
2016	5.048020264146402
2017	4.890204181057533
2018	4.704951094255991
2019	4.641265140221859
2020	5.0366748619265165
2021	5.039169861480375