Year Dollars 1992-01-01 3411064 1997-01-01 1789769 2002-01-01 3097275 2003-01-01 2945574 2004-01-01 3661126 2005-01-01 21996817 2006-01-01 31864962 2007-01-01 24028662 2008-01-01 36932198 2009-01-01 26101972 2010-01-01 41886682 2011-01-01 30264600 2012-01-01 69777148 2013-01-01 48006415 2014-01-01 59311443 2015-01-01 40656460 2016-01-01 25427321