Year	current US$
2002	1797000000
2003	2177000000
2004	2682000000
2005	2603000000
2006	2874000000
2007	3895000000
2008	5029000000
2009	4336000000
2010	4354000000
2011	4876000000
2012	4556000000
2013	4698000000
2014	5173000000
2015	4819000000
2016	4962000000
2017	5533000000
2018	6074000000
2019	6034000000
2020	3495000000