Year current US$ 2005 39999.9991059303 2006 50000.0007450581 2007 119999.997317791 2008 170000.00178813902 2009 119999.997317791 2010 129999.995231628 2011 140000.000596046 2012 129999.995231628 2013 100000.00149011599 2014 90000.0035762787 2015 70000.0002980232 2016 59999.9986588955 2017 70000.0002980232 2018 50000.0007450581 2019 180000.00715255702 2020 170000.00178813902 2021 150000.005960464 2022 170000.00178813902