Year Dollars 1992-01-01 50442230 1997-01-01 21415066 2002-01-01 44396526 2003-01-01 47149479 2004-01-01 41984059 2005-01-01 26981746 2006-01-01 25794055 2007-01-01 29161222 2008-01-01 35558887 2009-01-01 25485524 2010-01-01 38166308 2011-01-01 36942419 2012-01-01 30690962 2013-01-01 37840541 2014-01-01 27015375 2015-01-01 73165429 2016-01-01 51546772