Year current US$ 1960 -379999.99523162795 1961 -270000.010728836 1962 569999.992847443 1963 90000.0035762787 1964 300000.011920929 1965 899999.976158142 1966 430000.00715255697 1967 4639999.8664856 1968 1789999.96185303 1969 12319999.6948242 1970 18500000 1971 18180000.3051758 1972 17729999.5422363 1973 16729999.5422363 1974 2680000.0667572 1975 -409999.99642372096 1976 -360000.01430511504 1977 -889999.985694885 1978 -1610000.01430511 1979 -2099999.90463257 1980 -1830000.04291534 1981 -1529999.97138977 1982 -2009999.9904632599 1983 -1669999.95708466 1984 -1809999.9427795399 1985 -1759999.9904632599 1986 -1519999.98092651 1987 -1759999.9904632599 1988 -1230000.01907349 1989 -1460000.03814697 1990 -1740000.0095367401 1991 -17370000.8392334 1992 -1809999.9427795399 1993 -600000.023841858 1994 -1279999.97138977 1995 -1250000 1996 370000.00476837205 1997 280000.001192093 1998 180000.00715255702 1999 109999.999403954 2000 259999.990463257 2001 159999.99642372102 2002 140000.000596046 2003 129999.995231628 2004 70000.0002980232