Year Dollars 1992-01-01 223069941 1997-01-01 338809804 2002-01-01 457134987 2003-01-01 495716723 2004-01-01 484208245 2005-01-01 597103953 2006-01-01 672841644 2007-01-01 709901941 2008-01-01 675879098 2009-01-01 550521248 2010-01-01 535294776 2011-01-01 716760739 2012-01-01 806405226 2013-01-01 749351423 2014-01-01 764107204 2015-01-01 643868018 2016-01-01 645737242