Year current US$ 2005 500000 2006 500000 2007 2460000.03814697 2008 3200000.04768372 2009 3009999.99046326 2010 2940000.05722046 2011 1909999.9666214 2012 2230000.01907349 2013 1759999.9904632599 2014 6059999.94277954 2015 2599999.90463257 2016 829999.983310699 2017 709999.978542328 2018 790000.021457672 2019 2039999.96185303 2020 610000.014305115 2021 2240000.00953674 2022 579999.983310699