Year Dollars 1992-01-01 52715749 1997-01-01 116516426 2002-01-01 409103653 2003-01-01 482944986 2004-01-01 553791222 2005-01-01 574913953 2006-01-01 780033170 2007-01-01 877058359 2008-01-01 925086269 2009-01-01 1024403676 2010-01-01 1336580019 2011-01-01 1802654424 2012-01-01 1345282403 2013-01-01 1531894659 2014-01-01 1379678916 2015-01-01 1502960266 2016-01-01 1380038314