Year	Millions of 2000 Dollars
1976-01-01	26.99050000000000
1977-01-01	24.97980000000000
1978-01-01	25.07650000000000
1979-01-01	34.22440000000000
1980-01-01	48.07390000000000
1981-01-01	48.42910000000000
1982-01-01	44.41070000000000
1983-01-01	42.08550000000000
1984-01-01	53.59270000000000
1985-01-01	66.13690000000000
1986-01-01	80.70020000000000
1987-01-01	66.67390000000000
1988-01-01	80.40320000000000
1989-01-01	85.32200000000000
1990-01-01	91.24890000000000
1991-01-01	102.96300000000000
1992-01-01	110.33000000000000
1993-01-01	138.44200000000000
1994-01-01	157.74100000000000
1995-01-01	177.53700000000000
1996-01-01	216.73300000000000
1997-01-01	262.80000000000000
1998-01-01	318.11200000000000
1999-01-01	320.72400000000000
2000-01-01	323.15900000000000
2001-01-01	319.13300000000000
2002-01-01	372.57099999999997
2003-01-01	418.79000000000000
2004-01-01	470.61699999999996
2005-01-01	507.63000000000000
2006-01-01	596.48300000000010
2007-01-01	738.34899999999990
2008-01-01	871.76200000000000
2009-01-01	965.60700000000000
2010-01-01	1131.24000000000000
2011-01-01	1099.88000000000000
2012-01-01	1118.57000000000000
2013-01-01	1282.61000000000000
2014-01-01	1493.14000000000000
2015-01-01	1661.07000000000000
2016-01-01	1649.72000000000000