Year Dollars 1997-01-01 1007499 2002-01-01 175591 2003-01-01 155139 2004-01-01 286613 2005-01-01 1876307 2006-01-01 6346939 2007-01-01 848316 2008-01-01 701243 2009-01-01 929994 2010-01-01 704558 2011-01-01 584116 2012-01-01 445062 2013-01-01 403883 2014-01-01 959995 2015-01-01 737626 2016-01-01 1088947