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	6777299915.313725
2001	5732860023.498543
2002	5134489944.45801
2003	5004609958.648687
2004	5694870063.781741
2011	250000