Year	current US$
2003	3319000000
2004	3719000000
2005	3565000000
2006	3783000000
2007	3914000000
2008	4297000000
2009	4928000000
2010	4868000000
2011	4440000000
2012	4511000000
2013	4692000000
2014	5198000000
2015	5187000000
2016	5252000000
2017	5704000000
2018	6395000000
2019	6495000000
2020	1699000000