Year Dollars 1997-01-01 6986182 2002-01-01 9683550 2003-01-01 9921317 2004-01-01 9888363 2005-01-01 20215949 2006-01-01 54553783 2007-01-01 34765558 2008-01-01 65896298 2009-01-01 49513010 2010-01-01 66750971 2011-01-01 75818766 2012-01-01 53450445 2013-01-01 34370496 2014-01-01 49030757 2015-01-01 46144074 2016-01-01 75034275