Year	Millions of 2000 Dollars
1974-01-01	248.93500000000000
1975-01-01	279.31000000000000
1976-01-01	333.93100000000000
1977-01-01	363.20400000000000
1978-01-01	426.59600000000000
1979-01-01	406.43900000000000
1980-01-01	455.57000000000000
1981-01-01	344.46700000000000
1982-01-01	336.72200000000000
1983-01-01	350.85800000000000
1984-01-01	250.27900000000002
1985-01-01	229.93800000000000
1986-01-01	296.06400000000000
1987-01-01	365.84600000000000
1988-01-01	390.15800000000000
1989-01-01	439.27200000000000
1990-01-01	412.15600000000000
1991-01-01	448.65000000000000
1992-01-01	474.84300000000000
1993-01-01	471.61100000000000
1994-01-01	488.28700000000000
1995-01-01	480.49600000000000
1996-01-01	421.42400000000004
1997-01-01	475.98600000000000
1998-01-01	439.18300000000005
1999-01-01	470.88000000000000
2000-01-01	345.89400000000000
2001-01-01	233.26800000000000
2002-01-01	362.14300000000003
2003-01-01	529.32800000000000
2004-01-01	646.98600000000000
2005-01-01	610.98700000000000
2006-01-01	676.33899999999990
2007-01-01	807.84899999999990
2008-01-01	681.56500000000000
2009-01-01	1060.79000000000000
2010-01-01	1255.01000000000000
2011-01-01	1047.03000000000000
2012-01-01	1084.49000000000000
2013-01-01	1003.88000000000000
2014-01-01	938.07300000000000
2015-01-01	788.01100000000010
2016-01-01	1108.42000000000000