Year Dollars 2002-01-01 1390121 2003-01-01 909453 2004-01-01 4762188 2005-01-01 1012692 2006-01-01 7374233 2007-01-01 4951218 2010-01-01 15123664 2011-01-01 8659279 2012-01-01 8167669 2013-01-01 21872394 2015-01-01 7354798 2016-01-01 5278202