Year	current US$
1995	2126000000
1996	2615000000
1997	2851000000
1998	2854000000
1999	2800000000
2000	2677000000
2001	2569000000
2002	2923000000
2003	5712000000
2004	6513000000
2005	7516000000
2006	8120000000
2007	8779000000
2008	7956000000
2009	7624000000
2010	9085000000
2011	9515000000
2012	9996000000
2013	9245000000
2014	9338000000
2015	8259000000
2016	7919000000
2017	8817000000
2018	8989000000
2019	8390000000
2020	2607000000