Year Dollars 1997-01-01 233764 2002-01-01 208467 2003-01-01 523288 2004-01-01 1408373 2005-01-01 1024699 2006-01-01 828946 2007-01-01 1113713 2008-01-01 1714816 2009-01-01 1664593 2010-01-01 1194919 2011-01-01 1886309 2012-01-01 3103033 2013-01-01 1702538 2015-01-01 632592 2016-01-01 709071