Year current US$ 1980 200000.00298023198 1981 340000.00357627904 1982 270000.010728836 1983 400000.00596046395 1984 490000.009536743 1985 400000.00596046395 1986 649999.976158142 1987 699999.988079071 1988 589999.973773956 1989 529999.971389771 1990 540000.021457672 1991 699999.988079071 1992 649999.976158142 1993 660000.026226044 1994 850000.023841858 1995 1190000.0572204601 1996 1000000 1997 509999.99046325695 1998 949999.988079071 1999 4539999.96185303 2000 930000.007152557 2001 709999.978542328 2002 1820000.05245209 2003 990000.009536743 2004 1850000.02384186