Year	current US$
1991	187029998.779297
1992	272739990.234375
1993	186009994.506836
1994	119019996.64306599
1995	222720001.220703
1996	76569999.6948242
1997	56529998.779296905
1998	40450000.762939505
1999	39720001.220703095
2000	35959999.0844727
2001	40549999.237060495
2002	39450000.762939505
2003	45979999.5422363
2004	49939998.626709