Year Dollars 1992-01-01 4457387 1997-01-01 5138065 2002-01-01 29811882 2003-01-01 25293590 2004-01-01 42849492 2005-01-01 30779339 2006-01-01 81186424 2007-01-01 46469513 2008-01-01 31492535 2009-01-01 30368439 2010-01-01 112221132 2011-01-01 36778917 2012-01-01 98903366 2013-01-01 91632943 2014-01-01 157632466 2015-01-01 106153640 2016-01-01 214989913