Year Dollars 1992-01-01 537212 1997-01-01 361056 2002-01-01 1350440 2003-01-01 5865424 2004-01-01 5363367 2005-01-01 4120676 2006-01-01 7169237 2007-01-01 6495489 2008-01-01 6038244 2009-01-01 8799488 2010-01-01 3735785 2011-01-01 6130614 2012-01-01 5074832 2013-01-01 4826036 2014-01-01 4335907 2015-01-01 2815570 2016-01-01 1957726