Year Dollars 1992-01-01 5768667 1997-01-01 20437807 2002-01-01 3357659 2003-01-01 4103920 2004-01-01 5278532 2005-01-01 29983135 2006-01-01 27514472 2007-01-01 10844103 2008-01-01 10983235 2009-01-01 10885262 2010-01-01 16370477 2011-01-01 36812748 2012-01-01 54680673 2013-01-01 88573419 2014-01-01 89962699 2015-01-01 59287992 2016-01-01 53329700