Year current US$ 2005 10669999.893754726 2006 12690000.03300608 2007 25589999.906718727 2008 12899999.946355818 2009 17709999.963641156 2010 15910000.026226038 2011 22900000.039488066 2012 21384878.17347051 2013 26521597.385406483 2014 22270206.466317184 2015 21365835.85292103 2016 19651337.537914522 2017 17774099.932750694 2018 4769469.822756946 2019 20530775.249004368