Year Dollars 1992-01-01 13016015 1997-01-01 14843114 2002-01-01 34432747 2003-01-01 41667970 2004-01-01 39141769 2005-01-01 39748796 2006-01-01 32147144 2007-01-01 39637394 2008-01-01 83933834 2009-01-01 78697034 2010-01-01 35966840 2011-01-01 38531685 2012-01-01 35279825 2013-01-01 35160528 2014-01-01 40376306 2015-01-01 72983600 2016-01-01 88135601