Year Dollars 1997-01-01 441299 2004-01-01 74815 2006-01-01 159699 2007-01-01 206929 2008-01-01 356677 2009-01-01 234488 2011-01-01 1066486 2012-01-01 956648 2013-01-01 951403 2014-01-01 128116 2015-01-01 298685 2016-01-01 141379