Year Dollars 1997-01-01 685018 2002-01-01 188553 2003-01-01 222914 2004-01-01 845398 2005-01-01 129542 2006-01-01 442803 2007-01-01 425863 2008-01-01 808256 2009-01-01 413598 2010-01-01 810167 2011-01-01 409774 2012-01-01 614881 2013-01-01 754167 2014-01-01 538473 2015-01-01 2162790 2016-01-01 1559902