Year Dollars 2004-01-01 50516 2007-01-01 118982 2008-01-01 176320 2009-01-01 49101 2011-01-01 37376 2012-01-01 39633 2013-01-01 29157 2014-01-01 79662 2015-01-01 66875 2016-01-01 153698