Year	current US$
1990	-2109408341.26229
1993	2738113114.90368
1994	4408724019.41656
1995	7791530132.37717
1996	17494259273.4601
1997	12743234121.4882
1998	8849323513.73316
1999	16119507440.2027
2000	11571548972.0852