Year Dollars 1992-01-01 3467891 1997-01-01 3158346 2002-01-01 15727593 2003-01-01 26152196 2004-01-01 27617806 2005-01-01 26930530 2006-01-01 69230717 2007-01-01 109877625 2008-01-01 100510643 2009-01-01 38582690 2010-01-01 115096438 2011-01-01 271007053 2012-01-01 125359809 2013-01-01 136923334 2014-01-01 92048447 2015-01-01 47392744 2016-01-01 45976045