Year current US$ 2006 9999.99977648258 2008 19999.9995529652 2011 810000.002384186 2012 800000.011920929 2013 39999.9991059303 2017 1240000.0095367401 2018 230000.004172325 2019 1090000.0333786 2020 430000.00715255697 2021 709999.978542328 2022 1460000.03814697