Year Dollars 1992-01-01 308086186 1997-01-01 1656711218 2002-01-01 1034884671 2003-01-01 2169344917 2004-01-01 1761712470 2005-01-01 2279773790 2006-01-01 2659511547 2007-01-01 2408004321 2008-01-01 2636136913 2009-01-01 1156510557 2010-01-01 1364863273 2011-01-01 1890524961 2012-01-01 2778996568 2013-01-01 2606935397 2014-01-01 3697661262 2015-01-01 3697708121 2016-01-01 3537524474