Year current US$ 2006 9744115.14329374 2007 838490.633834239 2008 0 2009 0 2010 48320831.2824084 2011 14437783.8040867 2012 0 2013 0 2014 0 2015 0 2016 0 2017 0 2018 0 2019 0 2020 0 2021 0