Year Dollars 1992-01-01 410094853 1997-01-01 367044262 2002-01-01 407243273 2003-01-01 406404745 2004-01-01 623571507 2005-01-01 709960878 2006-01-01 944987615 2007-01-01 1134675038 2008-01-01 1444110521 2009-01-01 1432782143 2010-01-01 1528853804 2011-01-01 1772839105 2012-01-01 2002801814 2013-01-01 2978467917 2014-01-01 2629105409 2015-01-01 1464761231 2016-01-01 648920260