Year Dollars 1992-01-01 1054485 1997-01-01 1585736 2002-01-01 2894387 2003-01-01 740085 2004-01-01 5439324 2005-01-01 2636586 2006-01-01 2275793 2007-01-01 10388487 2008-01-01 13354669 2009-01-01 2987815 2010-01-01 41249545 2011-01-01 7359620 2012-01-01 4557548 2013-01-01 21497583 2014-01-01 6037827 2015-01-01 7071866 2016-01-01 7012874