Year	Millions of 2000 Dollars
1960-01-01	176.92900000000000
1961-01-01	228.05000000000000
1962-01-01	236.66600000000000
1963-01-01	277.47800000000000
1964-01-01	347.56900000000000
1965-01-01	398.11900000000000
1966-01-01	415.36900000000000
1967-01-01	530.52600000000000
1968-01-01	495.44800000000004
1969-01-01	547.08900000000000
1970-01-01	590.40400000000000
1971-01-01	645.11000000000000
1972-01-01	771.15400000000000
1973-01-01	915.01899999999990
1974-01-01	984.73300000000010
1975-01-01	1162.41000000000000
1976-01-01	1367.37000000000000
1977-01-01	1684.89000000000000
1978-01-01	2016.85000000000000
1979-01-01	2211.00000000000000
1980-01-01	2645.70000000000000
1981-01-01	2901.42000000000000
1982-01-01	2953.02000000000000
1983-01-01	3321.50000000000000
1984-01-01	1959.51000000000000
1985-01-01	1710.37000000000000
1986-01-01	1253.77000000000000
1987-01-01	1620.76000000000000
1988-01-01	1972.95000000000000
1989-01-01	1352.41000000000000
1990-01-01	1899.29000000000000
1991-01-01	2515.75000000000000
1992-01-01	2838.37000000000000
1993-01-01	3064.05000000000000
1994-01-01	3621.22000000000000
1995-01-01	3451.67000000000000
1996-01-01	3442.29000000000000
1997-01-01	3183.40000000000000
1998-01-01	2801.60000000000000
1999-01-01	2627.00000000000000
2000-01-01	2466.40000000000000
2001-01-01	2004.39000000000000
2002-01-01	1303.83000000000000
2003-01-01	1755.68000000000000
2004-01-01	1924.00000000000000
2005-01-01	2087.07000000000000
2006-01-01	2608.57000000000000
2007-01-01	3455.19000000000000
2008-01-01	3817.35000000000000
2009-01-01	7151.02000000000000
2010-01-01	8451.95000000000000
2011-01-01	9817.22000000000000
2012-01-01	11163.80000000000000
2013-01-01	12609.80000000000000
2014-01-01	14074.30000000000000
2015-01-01	12601.10000000000000
2016-01-01	13344.30000000000000