Year current US$ 2007 250000 2008 379999.99523162795 2009 1860000.01430511 2010 779999.971389771 2011 360000.01430511504 2012 810000.002384186 2013 310000.002384186 2014 280000.001192093 2015 1539999.96185303 2016 2440000.05722046 2017 2670000.07629395 2018 4119999.88555908 2019 4940000.05722046 2020 5269999.98092651 2021 5210000.03814697 2022 5230000.01907349