Year current US$ 2008 79999.9982118607 2009 90000.0035762787 2010 29999.999329447703 2011 50000.0007450581 2012 29999.999329447703 2013 39999.9991059303 2014 39999.9991059303 2015 70000.0002980232 2016 100000.00149011599 2017 70000.0002980232