Year current US$ 2006 990000.009536743 2007 180000.00715255702 2008 439999.997615814 2009 540000.021457672 2010 259999.990463257 2011 1039999.96185303 2012 259999.990463257 2013 200000.00298023198 2014 519999.980926514 2015 376350.52204132103 2016 196360.49866676301 2017 210213.050246239 2018 110146.343708038 2019 1346322.53646851 2020 377701.848745346 2021 37506.9640576839 2022 352685.63032150303