Year	constant 2015 US$
2001	517062502743.1174
2002	558858395520.8528
2003	619525458032.5735
2004	710998091863.2539
2005	783838295675.4248
2006	879657457023.7465
2007	1047325296832.3881
2008	1197154537473.6523
2009	1100364616256.9795
2010	1109422774630.6182
2011	1149733606072.3884
2012	1208624595907.8445
2013	1228791206658.4067
2014	1271504901833.12
2015	1213903986672.5496
2016	1172600491841.429
2017	1254580846661.3762
2018	1301249461749.3667
2019	1288572447124.4717
2020	1097940956426.703
2021	1210960901466.802