Year	current US$
1990	-50832139.2119241
1991	158120737.106358
1992	47666940.2164432
1993	178820549.244324
1994	411905170.062563
1995	465033244.992513
1996	307491817.008947
1997	101041778.203871
1998	186754571.768222
1999	121004795.69935
2000	406353348.761486
2001	390039509.54522
2002	145408112.935317
2003	364953893.396751
2004	248318921.708614