Year Dollars 1992-01-01 4528350 1997-01-01 3899891 2002-01-01 11842517 2003-01-01 22524719 2004-01-01 40491817 2005-01-01 97142210 2006-01-01 65853084 2007-01-01 66065541 2008-01-01 52425889 2009-01-01 41974562 2010-01-01 35300900 2011-01-01 39810315 2012-01-01 45102015 2013-01-01 46383955 2014-01-01 38500308 2015-01-01 25651020 2016-01-01 23594569