Year	Millions of 2000 Dollars
1991-01-01	412.77200000000000
1992-01-01	430.46900000000000
1993-01-01	487.97000000000000
1994-01-01	454.84000000000000
1995-01-01	485.13500000000000
1996-01-01	467.03500000000000
1997-01-01	492.63599999999997
1998-01-01	456.02700000000000
1999-01-01	456.02700000000000
2000-01-01	409.04200000000000
2001-01-01	430.30699999999996
2002-01-01	506.18100000000000
2003-01-01	653.69500000000000
2004-01-01	677.58400000000000
2005-01-01	495.11500000000000
2006-01-01	747.51899999999990
2007-01-01	851.13100000000010
2008-01-01	953.73200000000000
2009-01-01	1154.42000000000000
2010-01-01	1705.55000000000000
2011-01-01	1680.77000000000000
2012-01-01	1589.78000000000000
2013-01-01	1776.65000000000000
2014-01-01	1919.64000000000000
2015-01-01	2059.01000000000000
2016-01-01	1924.79000000000000