Year Dollars 2002-01-01 22048 2004-01-01 110697 2005-01-01 360117 2006-01-01 247496 2007-01-01 1044139 2009-01-01 228019 2010-01-01 458600 2011-01-01 1015233 2012-01-01 714679 2013-01-01 821113 2014-01-01 114739 2015-01-01 382932 2016-01-01 837440