Year Dollars 1992-01-01 14763912 1997-01-01 3765015 2002-01-01 1398077 2003-01-01 1392549 2004-01-01 5043181 2005-01-01 21875002 2006-01-01 10638240 2007-01-01 12637508 2008-01-01 13254027 2009-01-01 2933104 2010-01-01 14552848 2011-01-01 4763815 2012-01-01 2366361 2013-01-01 3572690 2014-01-01 4051124 2015-01-01 4744397