Year current US$ 2005 839999.9998509877 2006 1009999.9923259015 2007 -3409999.9591708174 2008 1499999.999999999 2009 589999.9942630529 2010 590000.0091642138 2011 1019999.9883770933 2012 2240000.0113993865 2013 3289999.9860674106 2014 2000000.037252902 2015 3610000.0403821473 2016 11390000.317245714 2017 18340000.027790662 2018 15590000.348165628 2019 11420000.076293953 2020 11199999.973177912 2021 22879999.853670597 2022 17710000.09588896