Year current US$ 2005 129999.995231628 2006 140000.000596046 2008 189999.99761581398 2009 239999.994635582 2010 150000.005960464 2011 500000 2012 361587.703227997 2013 511521.39902114903 2014 319010.16831398 2015 367868.00622940104 2016 347878.81374359096 2017 372599.98917579703 2018 80380.9016942978 2019 434458.10675621 2022 34938.9985203743