Year Dollars 2006-01-01 154333 2008-01-01 549293 2009-01-01 2785791 2010-01-01 99266 2011-01-01 142606 2012-01-01 527131 2013-01-01 575255 2014-01-01 205545 2015-01-01 542061 2016-01-01 297979