Year Dollars 1992-01-01 60444483 1997-01-01 128602214 2002-01-01 151718305 2003-01-01 153614189 2004-01-01 124824827 2005-01-01 168103862 2006-01-01 166874453 2007-01-01 238669184 2008-01-01 200064481 2009-01-01 154932373 2010-01-01 149187870 2011-01-01 184350284 2012-01-01 183341647 2013-01-01 133270266 2014-01-01 110640501 2015-01-01 94166049 2016-01-01 111422608