Year current US$ 1970 1069999.9835342169 1971 1020000.0014156101 1972 1040000.0158697361 1973 1080000.0149756665 1974 1230000.0172108416 1975 1459999.980404973 1976 1380000.01013279 1977 1489999.9741464858 1978 1709999.9878555536 1979 1470000.0323355198 1980 520000.0070035463 1981 3029999.919235706 1982 2280000.0011920934 1983 3079999.949783078 1984 2739999.9741464835 1985 2909999.983385203 1986 3080000.037327403 1987 3739999.9462068034 1988 3039999.9842047635 1989 3950000.023469328 1990 5010000.079870223 1991 6460000.0828504525 1992 6369999.976828692 1993 7000000.0242143795 1994 7000000.0279396735 1995 10679999.981075518 1996 7970000.162720678 1997 8919999.93845821 1998 10339999.988675112 1999 12480000.108480448 2000 9109999.94911253 2001 9499999.986961477 2002 8350000.075995922 2003 10839999.970048673 2004 8049999.998882413 2005 5629999.993368981 2006 5269999.951124189 2007 6319999.933242799 2008 5599999.934434892