Year current US$ 2005 70000.0002980232 2006 50000.0007450581 2007 119999.997317791 2008 180000.00715255702 2009 129999.995231628 2010 109999.999403954 2011 159999.99642372102 2012 59999.9986588955 2013 39999.9991059303 2014 19999.9995529652 2015 9999.99977648258 2018 50000.0007450581 2019 200000.00298023198 2020 370000.00476837205 2021 509999.99046325695 2022 230000.004172325