Year current US$ 1990 22200000.226497628 1991 16099999.673664562 1992 35599999.72581859 1993 26719999.670982365 1994 1480000.0376999353 1995 23910000.205039978 1996 9170000.13589859 1997 5059999.909251938 1998 28650000.171735886 1999 5150000.013411051 2000 7939999.7517466545 2001 34120000.42200088 2002 22860000.11302531 2003 26239999.935030922 2004 18189999.938011173 2005 340000.00357627904 2006 19999.9995529652 2007 140000.000596046 2008 119999.997317791 2009 200000.00298023198 2010 219999.998807907