Year Dollars 1992-01-01 5106594 1997-01-01 6945622 2002-01-01 11414297 2003-01-01 9001591 2004-01-01 6478486 2005-01-01 9583215 2006-01-01 5331707 2007-01-01 10862608 2008-01-01 10890033 2009-01-01 11035683 2010-01-01 10188691 2011-01-01 5924097 2012-01-01 6659778 2013-01-01 6083513 2014-01-01 4487351 2015-01-01 2740676 2016-01-01 6505346