Year Dollars 1997-01-01 16566 2005-01-01 60507 2006-01-01 38926 2008-01-01 45408 2009-01-01 104590 2010-01-01 165046 2011-01-01 117950 2012-01-01 1126525 2013-01-01 403281 2014-01-01 622569 2015-01-01 1004371 2016-01-01 379093