Year	constant 2010 US$
2006	4689299859.38528
2007	5634832876.931
2008	6501546370.74018
2009	5305695820.73255
2010	5202613245.03311
2011	5094309057.66558
2012	5009810531.1297
2013	5073889298.09193
2014	5206209865.54598
2015	5364790426.76913
2016	5844600644.21067
2017	6299770494.15125
2018	6672502545.31852