Year	constant 2021 US$
1990	10689999.5803833
1991	207179996.96731597
1992	479629997.25341773
1993	282709995.2697755
1994	354390003.2043456
1995	497830001.83105546
1996	409930000.3051766
1997	510239997.86376977
1998	726130001.0681162
1999	1015159996.0327151
2000	690789985.6567388
2001	864090011.5966806
2002	697809989.9291992
2003	1041449991.226196
2004	1043219999.7901919