Year Dollars 1992-01-01 1656579349 1997-01-01 2740973912 2002-01-01 3435858894 2003-01-01 3220665815 2004-01-01 3560556330 2005-01-01 3396835550 2006-01-01 3841910361 2007-01-01 3951543625 2008-01-01 4117332658 2009-01-01 3452320847 2010-01-01 3947584622 2011-01-01 4374686320 2012-01-01 4121395801 2013-01-01 4589442439 2014-01-01 5165743426 2015-01-01 5406287507 2016-01-01 5269516229