Year current US$ 2008 279999.99932944763 2009 299999.9988824129 2010 119999.99918043619 2011 99999.999627471 2012 850000.023841858 2013 869999.9824166293 2014 59999.9986588955 2015 39999.999105930285 2016 59999.9986588955 2017 70000.0002980232 2018 220000.0006705518 2019 29999.999329447783