Year Dollars 1997-01-01 28061 2003-01-01 169896 2004-01-01 66989 2006-01-01 70522 2007-01-01 210880 2008-01-01 416969 2009-01-01 731036 2010-01-01 575371 2011-01-01 302717 2012-01-01 747124 2013-01-01 223039 2014-01-01 357391 2015-01-01 585975 2016-01-01 409706