Year Dollars 1992-01-01 11007792 1997-01-01 11721374 2002-01-01 12942081 2003-01-01 30382650 2004-01-01 52502234 2005-01-01 58238558 2006-01-01 34182856 2007-01-01 36478969 2008-01-01 26761300 2009-01-01 22476320 2010-01-01 18977967 2011-01-01 11046135 2012-01-01 65164365 2013-01-01 29005922 2014-01-01 18324287 2015-01-01 6130530 2016-01-01 12859493