Year U.S. Dollars 2004-01-01 21797000000 2005-01-01 33232000000 2006-01-01 43014000000 2007-01-01 49185000000 2008-01-01 62348000000 2009-01-01 37440000000 2010-01-01 47255000000 2011-01-01 19090000000 2012-01-01 61177500000 2013-01-01 46184900000 2014-01-01 13799145357 2015-01-01 5113781297