Year	current US$
2002	2683000000
2003	2943000000
2004	3170000000
2005	2908000000
2006	3006000000
2007	3114000000
2008	3564000000
2009	4012000000
2010	4515000000
2011	4004000000
2012	4199000000
2013	4388000000
2014	4995000000
2015	4741000000
2016	5040000000
2017	5587000000
2018	6254000000
2019	6338000000
2020	1671000000