Year Dollars 1992-01-01 5274843 1997-01-01 13147592 2002-01-01 25002639 2003-01-01 25390693 2004-01-01 25112909 2005-01-01 25057095 2006-01-01 41981133 2007-01-01 54412322 2008-01-01 52730909 2009-01-01 49486406 2010-01-01 61122370 2011-01-01 61192874 2012-01-01 50763989 2013-01-01 39774581 2014-01-01 51227074 2015-01-01 66253266 2016-01-01 75979891