Year Dollars 1997-01-01 38567 2002-01-01 45546 2003-01-01 67432 2005-01-01 382814 2006-01-01 74315 2007-01-01 332162 2008-01-01 204761 2009-01-01 546995 2010-01-01 117137 2011-01-01 251761 2012-01-01 495973 2013-01-01 331882 2014-01-01 188956 2015-01-01 588930 2016-01-01 340813