Year	current US$
1991	23150000.907480676
1992	19999.995827674356
1994	259999.990463257
1995	-3190000.1671165247
1996	2109999.980777502
1997	2010000.0128149975
1998	5299999.859184019
1999	9929999.828338623
2000	6390000.00990927
2001	3200000.010430811
2002	5099999.910220504
2003	1200000.0104308168
2004	10179999.727755792
2005	340000.00357627904
2006	1179999.94754791
2008	939999.997615814
2009	699999.988079071
2010	439999.997615814