Year Dollars 1992-01-01 977188 1997-01-01 398261 2002-01-01 138325 2003-01-01 267284 2004-01-01 2445006 2005-01-01 8709372 2006-01-01 643761 2007-01-01 719039 2008-01-01 612530 2009-01-01 68012 2010-01-01 1269392 2012-01-01 817355 2013-01-01 1148733 2014-01-01 2317829 2015-01-01 1193354 2016-01-01 319875