Year current US$ 2010 270000.010728836 2011 250000 2012 109999.999403954 2013 180000.00715255702 2014 129999.995231628 2015 70000.0002980232 2016 39999.9991059303 2017 9999.99977648258 2018 0 2019 9999.99977648258 2020 9999.99977648258 2021 0 2022 0