Year Dollars 2002-01-01 3481735 2003-01-01 3649192 2004-01-01 9085037 2005-01-01 37825466 2006-01-01 50004244 2007-01-01 39220434 2008-01-01 37792514 2009-01-01 25005673 2010-01-01 16581396 2011-01-01 10212519 2012-01-01 7703719 2013-01-01 13025095 2014-01-01 10688301 2015-01-01 11445279 2016-01-01 8006049