Year current US$ 1973 9999.99977648258 1974 3599999.90463257 1975 1600000.02384186 1976 2559999.94277954 1977 2039999.96185303 1978 2049999.9523162802 1979 1769999.98092651 1980 6210000.03814697 1981 3779999.97138977 1982 3200000.04768372 1983 2829999.92370605 1984 3609999.89509583 1985 4449999.80926514 1986 5510000.228881841 1987 7449999.80926514 1988 14090000.1525879 1989 13439999.5803833 1990 8119999.88555908 1991 7510000.228881841 1992 8069999.694824221 1993 10770000.4577637 1994 6210000.03814697 1995 3900000.09536743 1996 6829999.92370605 1997 7230000.01907349 1998 6690000.05722046 1999 4760000.228881841 2000 3990000.00953674 2001 10130000.1144409 2002 28100000.3814697 2003 90000.0035762787 2004 -79999.9982118607 2005 2609999.89509583 2006 5230000.01907349 2007 3480000.01907349 2008 46900001.5258789 2009 3250000 2010 11479999.5422363 2011 15760000.2288818 2012 21739999.7711182 2013 30049999.237060502