Year	constant 2010 US$
2000	4561428678.826
2001	5042331953.26718
2002	5651978938.28076
2003	6113635678.21211
2004	8381345602.41578
2005	3943979044.68682
2006	10254501569.1683
2007	14219547766.4942
2008	17961178110.5238
2009	14381062603.3941
2010	13159167750.3251
2011	15710800210.8228
2012	21258542258.9931
2013	22992419638.4121
2014	19052511495.8624
2015	25276164006.5689
2016	20981843675.3479
2017	18112549503.5604