Year	current US$
2005	3680559806.8223414
2006	4597272557.455923
2007	6298738396.7054825
2008	7260173302.070986
2009	6809446914.442487
2010	8866558862.373377
2011	10176315704.465391
2012	10636666379.140648
2013	10873747158.939114
2014	11536008079.828327
2015	11734665711.763155
2016	10892726364.153063
2017	10443462666.595203
2018	12780774329.630238
2019	11905647348.749063