Year Dollars 2005-01-01 410839 2006-01-01 2600140 2008-01-01 15304617 2009-01-01 13563559 2010-01-01 16752101 2011-01-01 16716220 2012-01-01 18606547 2013-01-01 33912950 2014-01-01 107085693 2015-01-01 81487753 2016-01-01 10499138