Year Dollars 1992-01-01 5794732 1997-01-01 41763015 2002-01-01 74123266 2003-01-01 81349292 2004-01-01 70445002 2005-01-01 12758810 2006-01-01 74855635 2007-01-01 114119679 2008-01-01 148263113 2009-01-01 166979537 2010-01-01 123238067 2011-01-01 90692163 2012-01-01 326585765 2013-01-01 199774528 2014-01-01 206717431 2015-01-01 129749281 2016-01-01 56811264