Year	constant 2021 US$
1990	3245119932.1746836
1991	6726210083.007813
1992	6233289909.362801
1993	6242940048.217781
1994	6244380126.953125
1995	8036250083.923341
1996	4611899959.564217
1997	3640450004.577633
1998	4608329925.537111
1999	6519349922.180185
2000	6800099914.550786
2001	5743980023.384102
2002	5144979944.229128
2003	5014639958.381659
2004	5708670063.972476
2011	250000
2021	2059999.9912083112