Year Dollars 1992-01-01 1176615 1997-01-01 1532473 2002-01-01 467423 2003-01-01 1005416 2004-01-01 1072778 2005-01-01 1152092 2006-01-01 620262 2007-01-01 2843668 2008-01-01 4610876 2009-01-01 5373339 2010-01-01 1898351 2011-01-01 5534785 2012-01-01 10323423 2013-01-01 6108959 2014-01-01 10096593 2015-01-01 6147372 2016-01-01 1114511