Year	Millions of 2000 Dollars
1976-01-01	122.46000000000000
1977-01-01	149.62200000000000
1978-01-01	148.68700000000000
1979-01-01	139.55400000000000
1980-01-01	143.29300000000000
1981-01-01	123.16799999999999
1982-01-01	120.16799999999999
1983-01-01	107.66000000000000
1984-01-01	94.28440000000000
1985-01-01	113.39800000000000
1986-01-01	143.82900000000000
1987-01-01	162.69700000000000
1988-01-01	147.88600000000000
1989-01-01	156.08400000000000
1990-01-01	180.72600000000000
1991-01-01	190.66600000000000
1992-01-01	218.85900000000000
1993-01-01	343.30699999999996
1994-01-01	397.70400000000000
1995-01-01	463.25100000000000
1996-01-01	455.83700000000000
1997-01-01	435.95700000000000
1998-01-01	446.67500000000000
1999-01-01	445.07300000000004
2000-01-01	441.57700000000000
2001-01-01	452.39900000000000
2002-01-01	579.80000000000000
2003-01-01	762.01500000000000
2004-01-01	888.44500000000000
2005-01-01	864.59800000000010
2006-01-01	1108.64000000000000
2007-01-01	1315.58000000000000
2008-01-01	1356.76000000000000
2009-01-01	1389.81000000000000
2010-01-01	1336.84000000000000
2011-01-01	1317.92000000000000
2012-01-01	1417.63000000000000
2013-01-01	1616.35000000000000
2014-01-01	1520.53000000000000
2015-01-01	1440.95000000000000
2016-01-01	1463.36000000000000