Year	current US$
1982	137600000
1983	239160000
1984	384000000
1985	574030000
1986	1976180000
1987	6735730000
1988	7099740000
1989	7784920000
1990	4138689999.9999995
1991	1513030000
1992	1958120000
1993	7809610000
1994	13296000000
1995	19206500000
1996	4532410000
1997	34654130000
1998	63595810000
1999	105065650000
2000	210660030000
2001	179015230000
2002	143783330000
2003	142323710000
2004	188759280000