Year	current US$
1994	451190000
1995	756550000
1996	877800000
1997	161000000
1998	905100000
1999	304400000
2000	348100000
2001	304300000
2002	345300000
2003	1017000000
2004	305600000
2005	158600000
2006	126300000
2007	469300000
2008	328200000
2009	436270000
2010	1188100000
2011	876900000
2012	2080900000
2013	2764700000
2014	1641600000
2015	1731350000
2016	323900000
2017	718500000
2018	311200000
2019	54000000
2020	100000000
2022	868400000