Year current US$ 2006 839999.973773956 2007 550000.011920929 2008 899999.976158142 2009 379999.99523162795 2010 800000.011920929 2011 660000.026226044 2012 219999.998807907 2013 660000.026226044 2014 660000.026226044 2015 318491.39928817697 2016 410032.838582993 2017 453646.719455719 2018 585984.885692596 2019 531518.816947937 2020 301689.982414246 2021 955350.041389465 2022 567927.062511444