Year	constant 2015 US$
1995	3346516728062.527
1996	3538545499173.8315
1997	3729662348770.207
1998	3805896046475.756
1999	3919089968757.4844
2000	4169568763255.95
2001	4276228109360.356
2002	4438212101514.425
2003	4619774264734.036
2004	4903352332490.601
2005	5230764202340.348
2006	5606869638738.486
2007	6070458818565.331
2008	6402970129201.6455
2009	6598900200429.822
2010	7141502236173.737
2011	7787036240807.401
2012	8257116254371.498
2013	8742480202219.963
2014	9171770424651.488
2015	9585223645687.371
2016	10025185141729.006
2017	10632431889011.637
2018	11182259444172.871
2019	11653411762407.818
2020	11219460436746.73
2021	12335126826466.232
2022	12905357803187.691