Year	current US$
1996	691845080000
1997	690497880000
1998	493407340000
1999	821321448442.5725
2000	856349357933.2424
2001	645902450741.4926
2002	655235174180.4397
2003	1002617265024.1128
2004	1491615714420.3733
2005	2007463879170.126
2006	2793182828306.5986
2007	4502715707876.481
2008	2210531760222.8696
2009	3957677722294.437
2010	5036592821331.886
2011	4125176134755.254
2012	4660749740933.886
2013	4801635882112.152
2014	5150461565869.59
2015	4715159197178.357
2016	4963269736843.074
2017	6441565783080.556
2018	5669773035623.379
2019	8159231750604.82
2020	9667765758178.14
2021	11160770220000
2022	11283786682748.09