Year current US$ 1978 50000.0007450581 1980 50000.0007450581 1981 29999.999329447703 1985 70000.0002980232 1986 230000.004172325 1987 79999.9982118607 1988 70000.0002980232 1989 19999.9995529652 1990 19999.9995529652 1991 129999.995231628 1992 129999.995231628 1993 159999.99642372102 1994 730000.019073486 1995 610000.014305115 1996 109999.999403954 1997 90000.0035762787 1998 79999.9982118607 1999 29999.999329447703 2002 39999.9991059303 2003 29999.999329447703 2004 9999.99977648258 2005 19999.9995529652 2006 19999.9995529652 2011 119999.997317791