Year current US$ 2006 800000.011920929 2007 569999.992847443 2008 500000 2009 439999.997615814 2010 519999.980926514 2011 340000.00357627904 2012 1389999.98569489 2013 419999.986886978 2014 439999.997615814 2015 638813.078403473 2016 263183.236122131 2017 406594.514846802 2018 485248.44646453904 2019 298766.61300659203 2020 435499.04227256804 2021 331471.741199493 2022 139026.060700417