Year	current US$
1991	3420000.07629395
1992	80309997.55859381
1993	33310001.373291
1994	52759998.3215332
1995	63349998.4741211
1996	72190002.44140631
1997	81199996.9482422
1998	97889999.3896484
1999	98930000.3051758
2000	90589996.3378906
2001	105180000.30517599
2002	75199996.9482422
2003	113370002.746582
2004	161809997.55859402