Year	Millions of 2000 Dollars
1993-01-01	1477.5300000000000
1994-01-01	706.5950000000000
1995-01-01	750.0000000000000
1996-01-01	664.3389999999999
1997-01-01	604.7230000000001
1998-01-01	719.0700000000000
1999-01-01	789.4060000000001
2000-01-01	849.1339999999999
2001-01-01	1335.9800000000000
2002-01-01	1416.0800000000000
2003-01-01	1983.3400000000000
2004-01-01	2422.0400000000000
2005-01-01	2358.3500000000000
2006-01-01	3204.2600000000000
2007-01-01	4487.2200000000000
2008-01-01	4755.1100000000000
2009-01-01	4986.7100000000000
2010-01-01	5075.6600000000000
2011-01-01	5258.7700000000000
2012-01-01	5042.0800000000000
2013-01-01	5492.4100000000000
2014-01-01	5317.6600000000000
2015-01-01	5060.3800000000000
2016-01-01	5051.6000000000000