Year	current US$
2002	2408313327.79361
2003	2944892195.93917
2004	4304589871.24133
2005	4952163138.1681
2006	5865626019.46961
2007	9097695428.57805
2008	7894008016.91898
2009	8276102928.49962
2010	12440263575.7505
2011	16993651169.6878
2012	19654185016.0674
2013	23452415980.9297
2014	24348459634.2023
2015	17981602449.0718
2016	17925437195.0573
2017	21180676464.4866
2018	23229206800.3602
2019	21952826882.8611
2020	8090321421.13041
2021	7034632469.60155