Year current US$ 2005 -38557109.6484683 2006 102749696.750698 2007 346206473.483551 2008 525788792.376396 2009 257302340.529386 2010 179079423.458478 2011 247843497.571197 2012 -297313317.744187 2013 -267774819.533716 2014 -670547961.751038 2015 -452200506.733357 2016 -1029625287.62793 2017 -718131905.084087 2018 -639217974.164189 2019 -58844208.9305568 2020 -562135536.616404 2021 -1077766311.97001