Year Dollars 1997-01-01 157038 2002-01-01 907506 2003-01-01 684587 2004-01-01 1038828 2005-01-01 899888 2006-01-01 501675 2007-01-01 812374 2008-01-01 522562 2009-01-01 2755001 2010-01-01 687775 2011-01-01 1312886 2012-01-01 1477120 2013-01-01 1703642 2014-01-01 870016 2015-01-01 2494954 2016-01-01 2749208