Year current US$ 2006 589999.973773956 2007 340000.00357627904 2008 579999.983310699 2009 400000.00596046395 2010 839999.973773956 2011 349999.99403953605 2012 360000.01430511504 2013 860000.014305115 2014 1110000.01430511 2015 498092.05532074004 2016 564529.478549957 2017 589414.954185486 2018 549990.53478241 2019 298974.42460060096 2020 1005162.5967025799 2021 1001286.8642807 2022 602805.67407608