Year Dollars 1992-01-01 337968353 1997-01-01 520294632 2002-01-01 500700669 2003-01-01 517820315 2004-01-01 635269515 2005-01-01 617193292 2006-01-01 750248277 2007-01-01 723926026 2008-01-01 968410159 2009-01-01 825717741 2010-01-01 902977911 2011-01-01 1103188235 2012-01-01 1328555412 2013-01-01 1237141960 2014-01-01 1682403344 2015-01-01 1125625574 2016-01-01 1048591289