Year current US$ 1999 139999.9968707562 2001 39999.9991059303 2002 19999.9995529652 2004 29999.999329447783 2005 29999.999329447703 2007 120000.0010430813 2008 39999.9991059303 2010 59999.998658895405 2011 9999.99977648258 2017 29999.999329447703