Year Dollars 1997-01-01 55671 2004-01-01 637091 2006-01-01 10564708 2007-01-01 5258185 2008-01-01 3076161 2009-01-01 2381659 2010-01-01 2561549 2011-01-01 127683 2012-01-01 1289852 2013-01-01 5934129 2014-01-01 619730 2015-01-01 3135126 2016-01-01 2155543