Year Dollars 2002-01-01 44529 2003-01-01 97724 2004-01-01 157894 2005-01-01 54883 2007-01-01 580376 2008-01-01 79657 2009-01-01 691332 2010-01-01 66480 2011-01-01 1685549 2012-01-01 353791 2013-01-01 391366 2014-01-01 761453 2015-01-01 726549 2016-01-01 435320