Year Dollars 1992-01-01 404918831 1997-01-01 456829041 2002-01-01 559271096 2003-01-01 551506132 2004-01-01 570403622 2005-01-01 638862445 2006-01-01 680142731 2007-01-01 723335184 2008-01-01 755580267 2009-01-01 607043516 2010-01-01 581216295 2011-01-01 551570862 2012-01-01 506137350 2013-01-01 523811589 2014-01-01 520466136 2015-01-01 527847379 2016-01-01 560388508