Year Dollars 1992-01-01 457053 1997-01-01 45726 2002-01-01 67242 2005-01-01 123569 2006-01-01 278050 2007-01-01 566577 2008-01-01 1016564 2009-01-01 293126 2010-01-01 585383 2011-01-01 343782 2013-01-01 337803 2014-01-01 564166 2015-01-01 642743 2016-01-01 1045161