Year	constant 2010 US$
2001	3450539848.00321
2002	2930985534.26829
2003	2932721321.04851
2004	3181685652.02322
2005	3400914290.34273
2006	3620521211.02221
2007	3727171020.5074
2008	4032496070.32547
2009	4541904088.9115
2010	5825346141.46184
2011	5552467462.25435
2012	5740679923.65845
2013	6555836205.59225
2014	7928653290.74864
2015	8688788449.27347
2016	8928470428.49646
2017	11634945786.5288
2018	13360998067.7638