Year	Millions of 2000 Dollars
1960-01-01	635.6960000000000
1961-01-01	704.1280000000000
1962-01-01	868.9970000000000
1963-01-01	977.3290000000000
1964-01-01	1005.4400000000000
1965-01-01	1235.2400000000000
1966-01-01	1335.8800000000000
1967-01-01	1178.6700000000000
1968-01-01	792.3110000000000
1969-01-01	920.2510000000001
1970-01-01	1079.6500000000000
1971-01-01	1272.6500000000000
1972-01-01	1299.8500000000000
1973-01-01	1845.7500000000000
1974-01-01	1845.7500000000000
1975-01-01	1845.7500000000000
1976-01-01	1845.7500000000000
1977-01-01	1845.7500000000000
1978-01-01	1845.7500000000000
1979-01-01	1845.7500000000000
1980-01-01	1845.7500000000000
1981-01-01	1426.0700000000000
1982-01-01	1149.8700000000000
1983-01-01	1157.0800000000000
1984-01-01	1055.9700000000000
1985-01-01	1505.2200000000000
1986-01-01	2052.6500000000000
1987-01-01	3035.8800000000000
1988-01-01	2928.2400000000000
1989-01-01	3185.0500000000000
1990-01-01	3782.5800000000000
1991-01-01	4236.4700000000000
1992-01-01	3722.1200000000000
1993-01-01	3391.7400000000000
1994-01-01	3589.2600000000000
1995-01-01	3757.5300000000000
1996-01-01	3765.9600000000000
1997-01-01	3752.4600000000000
1998-01-01	4429.4300000000000
1999-01-01	4832.8900000000000
2000-01-01	4434.0100000000000
2001-01-01	4126.7600000000000
2002-01-01	5922.5100000000000
2003-01-01	8075.6100000000000
2004-01-01	10326.2000000000000
2005-01-01	12516.2000000000000
2006-01-01	17178.5000000000000
2007-01-01	20224.6000000000000
2008-01-01	13704.0000000000000
2009-01-01	13197.8000000000000
2010-01-01	12702.0000000000000
2011-01-01	12224.8000000000000
2012-01-01	10908.5000000000000
2013-01-01	12555.4000000000000
2014-01-01	12003.3000000000000
2015-01-01	12319.2000000000000
2016-01-01	13220.2000000000000