Year	Millions of 2000 Dollars
1997-01-01	1133.49
1998-01-01	1457.94
1999-01-01	1555.88
2000-01-01	1550.73
2001-01-01	2747.89
2002-01-01	3493.80
2003-01-01	4523.75
2004-01-01	5785.30
2005-01-01	5750.69
2006-01-01	7838.70
2007-01-01	11175.60
2008-01-01	10513.90
2009-01-01	10579.30
2010-01-01	10011.60
2011-01-01	9263.53
2012-01-01	9601.50
2013-01-01	10672.60
2014-01-01	10006.20
2015-01-01	9618.62
2016-01-01	9882.20