Year current US$ 1970 140000.000596046 1971 19999.9995529652 1972 150000.005960464 1973 100000.00149011599 1974 79999.9982118607 1975 259999.990463257 1976 1590000.0333786 1977 1269999.98092651 1978 1139999.98569489 1979 1110000.01430511 1980 1529999.97138977 1981 2839999.91416931 1982 1669999.95708466 1983 1539999.96185303 1984 1549999.95231628 1985 1789999.96185303 1986 2569999.9332428 1987 6219999.79019165 1988 5730000.01907349 1989 6429999.82833862 1990 8189999.580383301 1991 5610000.1335144 1992 14850000.3814697 1993 14430000.3051758 1994 6610000.1335144 1995 12449999.8092651 1996 11890000.3433228 1997 14520000.4577637 1998 14310000.4196167 1999 8699999.80926514 2000 6460000.03814697 2001 13640000.3433228 2002 10470000.2670288 2003 10750000 2004 12880000.1144409 2005 13170000.076293899 2006 1909999.9666214 2007 490000.009536743 2008 3250000 2009 1620000.00476837 2010 490000.009536743 2011 400000.00596046395 2012 59999.9986588955