Year Dollars 1997-01-01 4711299 2002-01-01 1133882 2003-01-01 1295746 2004-01-01 562165 2005-01-01 942265 2006-01-01 536687 2007-01-01 714659 2008-01-01 1239974 2009-01-01 565750 2010-01-01 1026323 2011-01-01 882868 2012-01-01 1593271 2013-01-01 3127124 2014-01-01 721843 2015-01-01 421916 2016-01-01 601578