Year Dollars 1992-01-01 411760 1997-01-01 153043 2002-01-01 460408 2003-01-01 260683 2004-01-01 808529 2005-01-01 287136 2006-01-01 1078602 2008-01-01 1122816 2009-01-01 1025896 2010-01-01 508861 2013-01-01 410835 2014-01-01 326052 2015-01-01 1328650 2016-01-01 655479