Year current US$ 2010 509999.99046325695 2011 140000.000596046 2012 79999.9982118607 2013 129999.995231628 2014 519999.980926514 2015 319999.99284744303 2016 140000.000596046 2017 119999.997317791 2018 569999.992847443 2019 349999.99403953605 2020 219999.998807907 2021 189999.99761581398 2022 129999.995231628