Year	current US$
1990	383310002.3269654
1991	1732189949.989319
1992	1422769996.6430662
1993	954840000.1525874
1994	985490005.4931648
1995	736680000.305177
1996	1091539996.1471562
1997	954709990.9782407
1998	1572799989.3426902
1999	1581249954.819679
2000	1481740014.6126764
2001	1656450011.3725657
2002	1224999999.0463262
2003	1291829980.7310107
2004	1887830027.2151837
2011	280000.001192093