Year Dollars 2004-01-01 82428 2008-01-01 1906319 2009-01-01 428383 2010-01-01 242067 2011-01-01 654186 2012-01-01 486831 2013-01-01 1091063 2014-01-01 761279 2015-01-01 1055614 2016-01-01 667641