Year Dollars 1997-01-01 869673 2002-01-01 1784497 2003-01-01 804802 2004-01-01 1152048 2005-01-01 2047298 2006-01-01 2364178 2007-01-01 4398120 2008-01-01 2025219 2009-01-01 1323865 2010-01-01 4203455 2011-01-01 2244163 2012-01-01 2184753 2013-01-01 2159719 2014-01-01 1587327 2015-01-01 3748917 2016-01-01 2135268