Year	Millions of 2000 Dollars
1991-01-01	17025.20000000000000
1992-01-01	310.76099999999997
1993-01-01	144.23400000000000
1994-01-01	258.26300000000000
1995-01-01	395.20200000000000
1996-01-01	422.80500000000000
1997-01-01	560.63300000000000
1998-01-01	283.42900000000003
1999-01-01	283.15700000000000
2000-01-01	363.29500000000000
2001-01-01	453.82199999999995
2002-01-01	573.10400000000000
2003-01-01	766.70000000000000
2004-01-01	1088.11000000000000
2005-01-01	1373.63000000000000
2006-01-01	1644.80000000000000
2007-01-01	2519.30000000000000
2008-01-01	3174.18000000000000
2009-01-01	2696.65000000000000
2010-01-01	2126.50000000000000
2011-01-01	2435.92000000000000
2012-01-01	2819.16000000000000
2013-01-01	3187.83000000000000
2014-01-01	2829.05000000000000
2015-01-01	2245.16000000000000
2016-01-01	2376.10000000000000