Year current US$ 2006 29999.999329447703 2007 70000.0002980232 2008 379999.99523162795 2009 219999.998807907 2010 19999.9995529652 2011 19999.9995529652 2012 9999.99977648258 2013 39999.9991059303 2014 19999.9995529652 2015 39999.9991059303 2016 50000.0007450581 2017 150000.005960464 2018 159999.99642372102 2019 289999.99165535 2020 129999.995231628 2021 1460000.03814697 2022 610000.014305115