Year constant 2021 US$ 1990 0 1991 0 1992 0 1993 0 1994 0 1995 0 1996 44460000.038147 1997 1928759941.4587 1998 1714150029.18243 1999 1443010020.25604 2000 1242129998.68393 2001 282049997.32971203 2002 1138200034.14154 2003 677760004.997253 2004 711670011.520386