Year Dollars 2004-01-01 482157 2005-01-01 486672 2007-01-01 384668 2008-01-01 586654 2009-01-01 1438804 2010-01-01 1501636 2011-01-01 3084605 2013-01-01 879820 2014-01-01 1233308 2015-01-01 678114