Year Dollars 2002-01-01 216355 2006-01-01 3327858 2007-01-01 194824 2008-01-01 8091067 2009-01-01 1958786 2011-01-01 94388463 2013-01-01 32147200 2014-01-01 6444932 2015-01-01 12318877 2016-01-01 6729870