Year current US$ 2007 9999.99977648258 2008 59999.9986588955 2009 9999.99977648258 2010 19999.9995529652 2011 9999.99977648258 2014 9999.99977648258 2017 19999.9995529652 2018 19999.9995529652 2019 990000.009536743 2020 939999.997615814 2021 800000.011920929 2022 560000.002384186