Year Dollars 2002-01-01 272631 2003-01-01 16310 2005-01-01 514756 2007-01-01 698798 2008-01-01 1944745 2009-01-01 932164 2011-01-01 7361332 2012-01-01 6828019 2014-01-01 1221837 2015-01-01 1716381 2016-01-01 1017700