Year Dollars 1992-01-01 11548116 1997-01-01 6329377 2002-01-01 5722524 2003-01-01 7076186 2004-01-01 11254339 2005-01-01 29033305 2006-01-01 19356968 2007-01-01 28611335 2008-01-01 17262996 2009-01-01 37034418 2010-01-01 22147112 2011-01-01 13337242 2012-01-01 13864769 2013-01-01 12338912 2014-01-01 25023901 2015-01-01 11984344 2016-01-01 48751896