Year	current US$
1995	972000000
1996	718000000
1997	977000000
1998	1317000000
1999	1626000000
2000	1810000000
2001	1731000000
2002	1998000000
2003	2479000000
2004	3222000000
2005	3861000000
2006	4316000000
2007	4953000000
2008	5785000000
2009	5305000000
2010	5261000000
2011	6095000000
2012	6378000000
2013	6474000000
2014	6843000000
2015	5844000000
2016	6024000000
2017	5809000000
2018	5921000000
2019	5995000000
2020	3044000000