Year Dollars 1997-01-01 696135 2002-01-01 52226 2004-01-01 674243 2005-01-01 1038456 2007-01-01 641048 2008-01-01 1083734 2009-01-01 3552694 2011-01-01 117639 2012-01-01 1002872 2013-01-01 1129247 2014-01-01 760614 2015-01-01 1619310 2016-01-01 1443026