Year Dollars 1992-01-01 550368 1997-01-01 1146526 2002-01-01 1782174 2003-01-01 1568946 2004-01-01 2041381 2005-01-01 5060924 2006-01-01 3495405 2007-01-01 3543830 2008-01-01 5015417 2009-01-01 6598065 2010-01-01 4992754 2011-01-01 4951664 2012-01-01 2945538 2013-01-01 3141453 2014-01-01 4065951 2015-01-01 4720429 2016-01-01 4250319