Year current US$ 1987 9999.99977648258 1988 19999.9995529652 1989 29999.999329447703 1990 109999.999403954 1991 119999.997317791 1992 200000.00298023198 1993 170000.00178813902 1994 150000.005960464 1995 310000.002384186 1996 360000.01430511504 1997 259999.990463257 1998 379999.99523162795 1999 330000.013113022 2000 189999.99761581398 2001 159999.99642372102 2002 289999.99165535 2003 389999.98569488496 2004 319999.99284744303