Year current US$ 2005 219999.9988079067 2006 759999.9792873855 2007 1539999.9693036072 2008 1369999.9637901783 2009 560000.0098347666 2010 779999.9900162221 2011 959999.9953061336 2012 249999.99627471017 2013 319999.99284744245 2014 279999.99932944775 2015 440000.0050663946 2016 769999.9902397399 2017 809999.989345669 2018 1069999.9872595074 2019 1590000.0073015683 2020 1680000.0388175254 2021 4499999.905005092 2022 7090000.137686731