Year Dollars 2002-01-01 28146 2005-01-01 251763 2007-01-01 250867 2008-01-01 89828 2009-01-01 349536 2010-01-01 791070 2011-01-01 816658 2012-01-01 421756 2013-01-01 2223720 2014-01-01 226975 2016-01-01 201503