Year	current US$
1993	2625990000
1994	2935790000
1995	1201900000
1996	1209750000
1997	1359710000
1998	650480000
1999	459970000
2000	436180000
2001	543500000
2002	926730000
2003	1294840000
2004	2409060000
2005	2457950000
2006	5831440000
2007	6910820000
2008	5381080000
2009	5091820000
2010	4166890000.0000005
2011	5430820000
2012	5397300000
2013	5615570000
2014	5376960000