Year	current US$
2005	3680559806.82234
2006	4597272557.455921
2007	6298738396.705481
2008	7260173302.070984
2009	6809446914.442485
2010	8866558862.373375
2011	10176315704.46539
2012	10636666379.140646
2013	10873747158.939112
2014	11536008079.828325
2015	11734665711.763153
2016	10892726364.15306
2017	10443462666.595201
2018	12780774329.630236
2019	11905647348.749062