Year	current US$
1977	92449996.95
1978	635900024.4
1979	901400024.4
1980	773500000
1981	436000000
1982	410700012.2
1983	386500000
1984	321399993.9
1985	349600006.1
1986	323000000
1987	334000000
1988	360000000
1989	430000000
1990	385000000
1991	350000000
1992	550000000
1993	352000000
1994	535000000
1995	339000000
1996	313000000
1997	238000000
1998	220000000
1999	198000000
2000	180000000
2001	170000000
2002	135000000
2003	889000000
2004	855000000
2005	823000000
2006	795000000
2007	1030442463.41463
2008	1325013920
2009	1349880000
2010	1622538750