Year	current US$
2001	1640641204.9102392
2002	1887056576.542672
2003	2327540012.8804407
2004	3190632195.3857493
2005	3693677047.319317
2006	4617096309.149146
2007	5721232467.08887
2008	7689702662.780594
2009	6231182290.634752
2010	7037094642.251104
2011	8027099722.972098
2012	9183782311.017519
2013	9648234371.915173
2014	8940649178.51201
2015	6932594344.913194
2016	8006928971.251703
2017	9628547056.016893
2018	10634091894.604914
2019	10806268687.658083