Year current US$ 2007 19999.9995529652 2008 29999.999329447703 2010 59999.9986588955 2011 59999.9986588955 2012 50000.0007450581 2013 150000.005960464 2016 19999.9995529652 2019 29999.999329447703 2022 9999.99977648258