Year current US$ 2005 689999.997615814 2006 430000.00528991164 2007 160000.0001490115 2008 610000.014305115 2009 129999.9989569188 2010 1219999.9839067506 2011 1509999.9904632599 2012 1829999.9795854054 2013 1659999.9945610778 2014 1240000.0281631951 2015 1330000.0522285725 2016 2129999.894648795 2017 1490000.0188499726 2018 1769999.98092651 2019 2589999.9234825326 2020 1090000.0333786 2021 3739999.908953905 2022 1560000.0098347634