Year current US$ 2006 649999.976158142 2007 939999.997615814 2008 1090000.0333786 2009 1090000.0333786 2010 720000.028610229 2011 490000.009536743 2012 1059999.9427795399 2013 870000.004768372 2014 569999.992847443 2015 469861.328601837 2016 507863.64078521694 2017 479776.79967880197 2018 974244.058132172 2019 1213389.63508606 2020 355761.379003525 2021 451924.56245422404 2022 956435.739994049