Year	constant 2021 US$
1990	2168279959.67865
1991	5638170048.236848
1992	2950009986.8774433
1993	2177180027.0080595
1994	3517650074.0051265
1995	4750890197.753906
1996	2314769966.1254916
1997	3920309951.7822294
1998	4541040069.580082
1999	4909969993.5913105
2000	5057859901.428228
2001	3754330047.6074247
2002	3494099922.1801815
2003	3321209960.9375024
2004	3952820022.5830092
2021	1269999.98092651