Year Dollars 1992-01-01 7485094 1997-01-01 4555534 2002-01-01 13741508 2003-01-01 10637534 2004-01-01 70998740 2005-01-01 20109854 2006-01-01 41244893 2007-01-01 31005159 2008-01-01 53868924 2009-01-01 61690667 2010-01-01 32503170 2011-01-01 61521772 2012-01-01 63812860 2013-01-01 56202266 2014-01-01 57817587 2015-01-01 50083554 2016-01-01 38881058