Year current US$ 2005 6889999.8664856 2006 6000000 2007 9399999.61853027 2008 7769999.98092651 2009 4480000.01907349 2010 3579999.92370605 2011 3190000.05722046 2012 2380000.1144409203 2013 1610000.01430511 2014 1580000.04291534 2015 1860000.01430511 2016 2220000.02861023 2017 2319999.9332428 2018 889999.985694885 2019 23680000.3051758 2020 1559999.9427795399 2021 479999.989271164 2022 479999.989271164