Year current US$ 1972 170000.00178813902 1973 400000.00596046395 1974 8759999.541565778 1975 19029999.999329448 1976 31530000.6866455 1977 41169998.1689453 1978 13420000.076293899 1979 5610000.1335144 1980 14949999.8092651 1981 12180000.3051758 1982 9539999.96185303 1983 5260000.228881841 1984 7420000.07629395 1985 5940000.05722046 1986 2869999.8855590797 1987 5719999.79019165 1988 15189999.846741548 1989 10090000.18984083 1990 14939999.85605477 1991 14280000.232160095 1992 20710000.12010335 1993 15569999.769330032 1994 83129999.99523158 1995 8490000.218153 1996 9220000.056549907 1997 8310000.039637081 1998 8280000.13530254 1999 8019999.8915195465 2000 15790000.438690186 2001 15959999.933838848 2002 16410000.085830687 2003 13079999.951645726 2004 12239999.918267127 2005 1610000.01430511 2006 1379999.99523163 2007 1779999.97138977 2008 2109999.89509583 2009 1179999.94754791 2010 239999.994635582