Year Dollars 1997-01-01 100398 2002-01-01 417062 2003-01-01 140657 2004-01-01 358603 2005-01-01 1504525 2006-01-01 995865 2007-01-01 1090578 2008-01-01 862591 2009-01-01 544062 2010-01-01 1016825 2011-01-01 1043410 2012-01-01 573704 2013-01-01 1499701 2014-01-01 6257090 2015-01-01 1048020 2016-01-01 1317523