Year Dollars 1997-01-01 215004 2002-01-01 820604 2003-01-01 1381841 2004-01-01 2383120 2005-01-01 2705456 2006-01-01 5010740 2007-01-01 6210005 2008-01-01 11226864 2009-01-01 9724051 2010-01-01 10473356 2011-01-01 9177260 2012-01-01 10566509 2013-01-01 6834351 2014-01-01 8994602 2015-01-01 5445854 2016-01-01 6978125