Year Dollars 1997-01-01 7985554 2002-01-01 11241615 2003-01-01 3706588 2004-01-01 5756151 2005-01-01 6650666 2006-01-01 7960551 2007-01-01 9973251 2008-01-01 10013862 2009-01-01 13194032 2010-01-01 7838926 2011-01-01 49727468 2012-01-01 24252640 2013-01-01 9459301 2014-01-01 12943996 2015-01-01 6874218 2016-01-01 7394198