Year Dollars 2007-01-01 544957 2008-01-01 435725 2009-01-01 220646 2010-01-01 347429 2011-01-01 472993 2012-01-01 739105 2013-01-01 277390 2014-01-01 1168688 2015-01-01 888628 2016-01-01 820719