Year	current US$
1995	247000000
1996	263000000
1997	311000000
1998	366000000
1999	518000000
2000	573000000
2001	630000000
2002	740000000
2003	720000000
2004	864000000
2005	920000000
2006	1048000000
2007	1105000000
2008	1166000000
2009	1118000000
2010	1362000000
2011	1035000000
2012	1059000000
2013	1175000000
2014	1208000000
2015	2705000000
2016	3846000000
2017	4245000000
2018	3689000000
2019	3681000000
2020	673000000