Year	Millions of 2000 Dollars
1960-01-01	4842.10
1961-01-01	5550.50
1962-01-01	6232.69
1963-01-01	6832.92
1964-01-01	7636.46
1965-01-01	9505.47
1966-01-01	9983.76
1967-01-01	11429.90
1968-01-01	12468.30
1969-01-01	15769.20
1970-01-01	18348.40
1971-01-01	22447.80
1972-01-01	28381.50
1973-01-01	31935.90
1974-01-01	39404.80
1975-01-01	38534.30
1976-01-01	55129.20
1977-01-01	47873.20
1978-01-01	45923.10
1979-01-01	57852.10
1980-01-01	64824.10
1981-01-01	62239.80
1982-01-01	55669.70
1983-01-01	43692.60
1984-01-01	41666.40
1985-01-01	53719.50
1986-01-01	67340.20
1987-01-01	82499.00
1988-01-01	81765.70
1989-01-01	86025.40
1990-01-01	99319.50
1991-01-01	118523.00
1992-01-01	123880.00
1993-01-01	110788.00
1994-01-01	130833.00
1995-01-01	147104.00
1996-01-01	143695.00
1997-01-01	128762.00
1998-01-01	143202.00
1999-01-01	149727.00
2000-01-01	140922.00
2001-01-01	138121.00
2002-01-01	161600.00
2003-01-01	199545.00
2004-01-01	220897.00
2005-01-01	198193.00
2006-01-01	223542.00
2007-01-01	257630.00
2008-01-01	264458.00
2009-01-01	254912.00
2010-01-01	235629.00
2011-01-01	219742.00
2012-01-01	202738.00
2013-01-01	213631.00
2014-01-01	189741.00
2015-01-01	176154.00
2016-01-01	180239.00