Year Dollars 1997-01-01 224289 2002-01-01 138806 2003-01-01 259767 2004-01-01 17835 2007-01-01 784107 2008-01-01 572559 2009-01-01 601003 2011-01-01 284936 2012-01-01 457550 2013-01-01 558024 2014-01-01 635257 2015-01-01 684887 2016-01-01 616198