Year Dollars 1992-01-01 769588503 1997-01-01 1650997905 2002-01-01 2030950273 2003-01-01 2242588088 2004-01-01 2309687551 2005-01-01 2578562314 2006-01-01 2771433653 2007-01-01 2922754462 2008-01-01 2626128984 2009-01-01 2201933806 2010-01-01 2594207737 2011-01-01 3024064040 2012-01-01 3258944489 2013-01-01 3089176168 2014-01-01 2957452030 2015-01-01 3118195187 2016-01-01 2875831302