Year current US$ 1999 180000.00715255702 2000 70000.0002980232 2001 230000.004172325 2002 59999.9986588955 2005 90000.0035762787 2006 170000.00178813902 2007 389999.98569488496 2009 29999.999329447703 2010 490000.009536743 2011 2559999.94277954 2012 680000.007152557 2013 1379999.99523163 2014 289999.99165535 2015 50000.0007450581 2016 -9999.99977648258 2017 0 2022 280000.001192093