Year Dollars 1992-01-01 153697360 1997-01-01 231017945 2002-01-01 242021315 2003-01-01 428695371 2004-01-01 376835417 2005-01-01 564497713 2006-01-01 532205833 2007-01-01 420211673 2008-01-01 412515654 2009-01-01 405687847 2010-01-01 183954089 2011-01-01 165568042 2012-01-01 166516282 2013-01-01 177428884 2014-01-01 229880273 2015-01-01 195831819 2016-01-01 194695657