Year Dollars 1992-01-01 3884409 1997-01-01 31098670 2002-01-01 56170651 2003-01-01 46176566 2004-01-01 62379548 2005-01-01 98711037 2006-01-01 61396180 2007-01-01 39830480 2008-01-01 69268237 2009-01-01 67994991 2010-01-01 90827185 2011-01-01 147902187 2012-01-01 119554996 2013-01-01 190806124 2014-01-01 128559554 2015-01-01 105906656 2016-01-01 86057285