Year Dollars 2004-01-01 39285 2007-01-01 171518 2008-01-01 354791 2009-01-01 599329 2010-01-01 1432252 2011-01-01 2432055 2013-01-01 4488323 2014-01-01 1442485 2015-01-01 1243629 2016-01-01 341494