Year current US$ 1986 29999.999329447703 1997 79999.9982118607 2001 50000.0007450581 2004 310000.002384186 2005 50000.0007450581 2006 29999.999329447703 2007 150000.005960464 2008 39999.9991059303 2009 109999.999403954