Year Dollars 2007-01-01 68077 2008-01-01 465899 2009-01-01 507507 2010-01-01 541581 2011-01-01 1022945 2012-01-01 395606 2013-01-01 962812 2014-01-01 1005691 2015-01-01 172658 2016-01-01 157713