Year Dollars 2004-01-01 26275 2006-01-01 167005 2007-01-01 63507 2008-01-01 292308 2009-01-01 56771 2010-01-01 1755605 2011-01-01 1980106 2012-01-01 2439976 2013-01-01 3553133 2014-01-01 2476592 2015-01-01 918847 2016-01-01 2961985