Year Dollars 1997-01-01 81748 2002-01-01 460115 2004-01-01 876447 2005-01-01 859742 2006-01-01 1066095 2007-01-01 818218 2009-01-01 2806712 2010-01-01 365364 2011-01-01 80005 2012-01-01 42220 2013-01-01 211814 2014-01-01 383678 2015-01-01 314814 2016-01-01 330704