Year Dollars 2002-01-01 21773 2004-01-01 56448 2005-01-01 23863 2006-01-01 96536 2007-01-01 17924 2008-01-01 45735 2009-01-01 43832 2010-01-01 142137 2011-01-01 192486 2012-01-01 66750 2013-01-01 98473 2014-01-01 237474 2015-01-01 126702 2016-01-01 53203