Year	current US$
1995	2654000000
1996	3137000000
1997	3422000000
1998	3419000000
1999	3407000000
2000	3338000000
2001	3256000000
2002	3695000000
2003	6674000000
2004	7571000000
2005	8629000000
2006	9211000000
2007	10226000000
2008	9178000000
2009	8684000000
2010	10309000000
2011	10706000000
2012	11202000000
2013	10468000000
2014	10484000000
2015	9140000000
2016	8807000000
2017	9706000000
2018	9789000000
2019	9064000000
2020	2716000000