Year Dollars 1992-01-01 21391725 1997-01-01 38402493 2002-01-01 36712753 2003-01-01 50944750 2004-01-01 40820366 2005-01-01 38046199 2006-01-01 17848318 2007-01-01 26784690 2008-01-01 23074656 2009-01-01 23540008 2010-01-01 51719293 2011-01-01 53496442 2012-01-01 54978120 2013-01-01 40617409 2014-01-01 39065488 2015-01-01 37242941 2016-01-01 61062213