Year	Millions of 2000 Dollars
1960-01-01	22084.2
1961-01-01	24106.7
1962-01-01	25868.5
1963-01-01	28574.9
1964-01-01	31139.9
1965-01-01	33674.9
1966-01-01	36618.7
1967-01-01	36052.1
1968-01-01	38620.6
1969-01-01	40261.0
1970-01-01	39991.8
1971-01-01	44712.0
1972-01-01	50557.7
1973-01-01	57526.9
1974-01-01	61815.0
1975-01-01	67115.1
1976-01-01	76327.2
1977-01-01	78309.5
1978-01-01	86783.5
1979-01-01	80097.3
1980-01-01	70931.0
1981-01-01	59274.0
1982-01-01	55398.8
1983-01-01	57910.8
1984-01-01	57266.2
1985-01-01	81979.9
1986-01-01	108379.0
1987-01-01	133122.0
1988-01-01	119323.0
1989-01-01	120190.0
1990-01-01	138037.0
1991-01-01	135961.0
1992-01-01	123980.0
1993-01-01	133416.0
1994-01-01	130273.0
1995-01-01	148007.0
1996-01-01	144528.0
1997-01-01	132195.0
1998-01-01	143676.0
1999-01-01	119698.0
2000-01-01	101286.0
2001-01-01	98516.3
2002-01-01	119110.0
2003-01-01	147373.0
2004-01-01	172653.0
2005-01-01	167594.0
2006-01-01	200150.0
2007-01-01	240559.0
2008-01-01	248801.0
2009-01-01	228703.0
2010-01-01	224757.0
2011-01-01	200605.0
2012-01-01	204287.0
2013-01-01	190701.0
2014-01-01	190960.0
2015-01-01	186749.0
2016-01-01	164409.0