Year current US$ 2008 -262493042.3319174 2009 -335073631.5643234 2010 -305175995.5137749 2011 -12068250.340333011 2012 -25784427.844972238 2013 60756097.72294125 2014 -153958667.67278486 2015 82779686.14084607 2016 411517996.5929506 2017 641974862.348425 2018 637105812.301526 2019 586950972.6650665 2020 91712014.58731018 2021 388878571.3356289 2022 231245451.75388783 2023 367630932.94113827