Year Dollars 1992-01-01 707045 1997-01-01 627642 2002-01-01 22265792 2003-01-01 25655418 2004-01-01 25714117 2005-01-01 20009933 2006-01-01 23624798 2007-01-01 13343609 2008-01-01 10173992 2009-01-01 15104741 2010-01-01 16901633 2011-01-01 9062084 2012-01-01 18285877 2013-01-01 16094542 2014-01-01 11900830 2015-01-01 13299384 2016-01-01 26204688