Year Dollars 1992-01-01 95451501 1997-01-01 161891506 2002-01-01 180712716 2003-01-01 240620771 2004-01-01 313476100 2005-01-01 375433532 2006-01-01 441964703 2007-01-01 581850680 2008-01-01 657056709 2009-01-01 559094993 2010-01-01 585735625 2011-01-01 618631300 2012-01-01 634437362 2013-01-01 712983709 2014-01-01 887298662 2015-01-01 819225656 2016-01-01 728709161