Year Dollars 1997-01-01 165542 2005-01-01 225263 2006-01-01 712757 2007-01-01 496232 2008-01-01 444154 2009-01-01 510530 2010-01-01 384902 2011-01-01 316082 2012-01-01 97068 2013-01-01 146900 2014-01-01 241701 2015-01-01 138471 2016-01-01 354589