Year Dollars 1992-01-01 19884576 1997-01-01 81225445 2002-01-01 71773392 2003-01-01 141793590 2004-01-01 150169085 2005-01-01 118954041 2006-01-01 186413423 2007-01-01 270390535 2008-01-01 469289447 2009-01-01 136170311 2010-01-01 232821622 2011-01-01 284152223 2012-01-01 277633779 2013-01-01 282685349 2014-01-01 178098092 2015-01-01 68714053 2016-01-01 78732143