Year	current US$
1995	1258000000
1996	1165000000
1997	1013000000
1998	1017000000
1999	1031000000
2000	1082000000
2001	1150000000
2002	970000000
2003	773000000
2004	1800000000
2005	1944000000
2006	2025000000
2007	2884000000
2008	3150000000
2009	3757000000
2010	6190000000
2011	1753000000