Year Dollars 2002-01-01 19859 2004-01-01 88999 2006-01-01 56600 2008-01-01 54962 2009-01-01 75589 2010-01-01 23346 2011-01-01 76185 2012-01-01 36619 2013-01-01 270679 2014-01-01 484793 2015-01-01 91315