Year current US$ 2005 757326.006889343 2006 24214.9997502565 2007 458000.004291534 2008 -398000.001907349 2009 -316925.793886185 2010 1342242.83695221 2011 557122.528553009 2012 545437.216758728 2013 841903.746128082 2014 -2183662.89138794 2015 -5276762.96234131 2016 -2065490.24581909 2017 946948.707103729 2018 84042.3554182053 2019 -193593.323230743 2020 -2275644.54078674 2021 2404124.73678589 2022 4530417.91915894