Year	current US$
1993	2700000
1994	174700000
1995	834700000
1996	2607100000
1997	2368800000
1998	1012000000
1999	478000000
2000	534000000
2001	953200000
2002	880900000
2003	746500000
2004	750500000
2005	66400000.00000001
2006	99500000
2007	31270000
2008	21080000
2009	174680000
2010	308920000
2011	452810000
2012	76940000
2013	53950000
2014	10240000