Year current US$ 1997 9999.99977648258 1998 19999.9995529652 1999 9999.99977648258 2002 9999.99977648258 2003 70000.0002980232 2004 90000.0035762787 2005 990000.009536743 2006 670000.016689301 2007 1230000.01907349 2008 490000.009536743 2009 509999.99046325695 2010 449999.988079071 2011 449999.988079071 2012 259999.990463257 2013 59999.9986588955 2014 70000.0002980232 2015 29999.999329447703 2016 9999.99977648258 2017 19999.9995529652 2018 0