Year	constant 2021 US$
1991	20040000.915527303
1992	139399993.89648402
1993	64379997.253418
1994	62340000.1525879
1995	72830001.8310547
1996	83809997.55859381
1997	162369996.9649314
1998	216680001.88469857
1999	230480003.35693353
2000	207969999.55177355
2001	211550001.14440966
2002	148689996.60015106
2003	151800003.29017606
2004	243800006.21080422
2021	50000.0007450581