Year	current US$
1995	138000000
1996	103000000
1997	413000000
1998	428000000
1999	444000000
2000	589000000
2001	610000000
2002	565000000
2003	452000000
2004	527000000
2005	567000000
2006	578000000
2007	750000000
2008	935000000
2009	1124000000
2010	931000000
2011	1410000000
2012	1955000000
2013	2187000000
2014	1690000000
2015	1148000000
2016	1108000000