Year	Dollars
1992-01-01	4437263083
1997-01-01	5662149751
2002-01-01	7483446254
2003-01-01	7418796591
2004-01-01	7776490445
2005-01-01	8837302430
2006-01-01	11057764597
2007-01-01	12578713548
2008-01-01	14174417419
2009-01-01	13298697613
2010-01-01	15115681604
2011-01-01	14422241096
2012-01-01	14940781282
2013-01-01	15341570950
2014-01-01	14878986611
2015-01-01	14298240471
2016-01-01	13541796372