Year current US$ 2005 19999.9995529652 2006 79999.9982118607 2007 409999.99642372096 2008 1090000.0333786 2009 930000.007152557 2010 1440000.0572204601 2011 1279999.97138977 2012 1139999.98569489 2013 860000.014305115 2014 720000.028610229 2015 709999.978542328 2016 680000.007152557 2017 879999.995231628 2018 1250000 2019 1350000.02384186 2020 1159999.9666214 2021 1330000.04291534 2022 1009999.99046326