Year current US$ 2005 360000.01430511504 2006 490000.009536743 2007 920000.016689301 2008 720000.028610229 2009 589999.973773956 2010 349999.99403953605 2011 230000.004172325 2012 189999.99761581398 2013 219999.998807907 2014 250000 2015 189999.99761581398 2016 180000.00715255702 2017 200000.00298023198 2018 340000.00357627904 2019 460000.00834465 2020 280000.001192093 2021 310000.002384186 2022 50000.0007450581