Year	Millions of 2000 Dollars
1960-01-01	517.0560000000000
1961-01-01	550.1390000000000
1962-01-01	626.5340000000000
1963-01-01	785.2139999999999
1964-01-01	736.9190000000000
1965-01-01	859.4850000000000
1966-01-01	991.9680000000001
1967-01-01	1168.3100000000000
1968-01-01	1274.9400000000000
1969-01-01	1142.4000000000000
1970-01-01	1411.4500000000000
1971-01-01	1611.5800000000000
1972-01-01	2026.2400000000000
1973-01-01	2108.7700000000000
1974-01-01	2241.6200000000000
1975-01-01	2551.5600000000000
1976-01-01	2600.7700000000000
1977-01-01	2824.6200000000000
1978-01-01	3090.8400000000000
1979-01-01	3359.4100000000000
1980-01-01	3735.6900000000000
1981-01-01	4079.0600000000000
1982-01-01	4423.1000000000000
1983-01-01	4351.7700000000000
1984-01-01	4492.6500000000000
1985-01-01	4552.2200000000000
1986-01-01	4752.5100000000000
1987-01-01	4393.0700000000000
1988-01-01	3075.9600000000000
1989-01-01	2878.7000000000000
1990-01-01	3707.3700000000000
1991-01-01	4754.7300000000000
1992-01-01	5801.9900000000000
1993-01-01	6716.2700000000000
1994-01-01	7571.9500000000000
1995-01-01	8002.3500000000000
1996-01-01	8311.1200000000000
1997-01-01	9294.5600000000000
1998-01-01	10567.1000000000000
1999-01-01	11161.9000000000000
2000-01-01	11796.7000000000000
2001-01-01	12533.0000000000000
2002-01-01	12033.0000000000000
2003-01-01	12226.9000000000000
2004-01-01	12794.1000000000000
2005-01-01	13431.4000000000000
2006-01-01	16016.6000000000000
2007-01-01	17850.8000000000000
2008-01-01	20435.3000000000000
2009-01-01	22138.4000000000000
2010-01-01	24096.1000000000000
2011-01-01	25404.7000000000000
2012-01-01	27703.7000000000000
2013-01-01	24166.2000000000000
2014-01-01	32157.4000000000000
2015-01-01	33371.3000000000000
2016-01-01	34497.6000000000000