Year current US$ 2005 469999.998807907 2006 540000.021457672 2007 949999.988079071 2008 1059999.9427795399 2009 239999.994635582 2010 140000.000596046 2011 159999.99642372102 2012 129999.995231628 2013 140000.000596046 2014 109999.999403954 2015 50000.0007450581 2016 50000.0007450581 2017 59999.9986588955 2018 100000.00149011599 2019 140000.000596046 2020 119999.997317791 2021 79999.9982118607 2022 39999.9991059303