Year Dollars 1992-01-01 177465 1997-01-01 622165 2002-01-01 1579029 2003-01-01 4192596 2004-01-01 4133690 2005-01-01 4774470 2006-01-01 3391611 2007-01-01 2027186 2008-01-01 3563795 2009-01-01 3789267 2010-01-01 7540978 2011-01-01 7086774 2012-01-01 5158590 2013-01-01 5270868 2014-01-01 3416148 2015-01-01 5697845 2016-01-01 9588876