Year Dollars 1992-01-01 3414375 1997-01-01 14920374 2002-01-01 10406743 2003-01-01 9307272 2004-01-01 24900997 2005-01-01 20646055 2006-01-01 14089817 2007-01-01 14394013 2008-01-01 16645411 2009-01-01 17710720 2010-01-01 23535201 2011-01-01 17424185 2012-01-01 21492756 2013-01-01 77885245 2014-01-01 117415201 2015-01-01 28254256 2016-01-01 20518937