Year current US$ 2006 59999.9986588955 2007 29999.999329447703 2008 340000.00357627904 2009 270000.010728836 2010 170000.00178813902 2011 280000.001192093 2013 100000.00149011599 2018 19999.9995529652 2019 19999.9995529652 2021 50000.0007450581 2022 2059999.94277954