Year Dollars 1992-01-01 1503447708 1997-01-01 2267378677 2002-01-01 2035448827 2003-01-01 2267636446 2004-01-01 2770512969 2005-01-01 3750331950 2006-01-01 3609470674 2007-01-01 4005985930 2008-01-01 4543480550 2009-01-01 3972280654 2010-01-01 4833520473 2011-01-01 5532059099 2012-01-01 5846712799 2013-01-01 6243822383 2014-01-01 5752381666 2015-01-01 4744409459 2016-01-01 4469967327