Year	current US$
1990	21109999.636188176
1991	5649999.894201755
1992	41470001.37157737
1993	27869999.229907937
1994	40670000.78968699
1995	15210000.06794929
1996	18509999.960660927
1997	19140000.177547336
1998	22279999.827966075
1999	7759999.8936057
2000	7789999.989792705
2001	22599999.42407014
2002	19459999.43092465
2003	19340000.174939618
2004	18740000.07286666
2005	15489999.7711182
2006	14939999.5803833
2007	6920000.07629395
2008	4230000.01907349
2009	3599999.90463257
2010	3460000.03814697