Year	Millions of 2000 Dollars
1975-01-01	163.18000000000000
1976-01-01	148.53100000000000
1977-01-01	134.02100000000002
1978-01-01	135.75200000000000
1979-01-01	138.36900000000000
1980-01-01	136.73700000000000
1981-01-01	145.54700000000000
1982-01-01	159.07100000000000
1983-01-01	189.76400000000000
1984-01-01	192.91600000000000
1985-01-01	207.01000000000000
1986-01-01	241.89400000000000
1987-01-01	316.15800000000000
1988-01-01	356.97700000000000
1989-01-01	386.63100000000000
1990-01-01	377.61900000000000
1991-01-01	422.67500000000000
1992-01-01	452.22100000000000
1993-01-01	471.93699999999995
1994-01-01	500.52500000000000
1995-01-01	584.34700000000000
1996-01-01	553.63500000000000
1997-01-01	583.27000000000000
1998-01-01	659.03199999999990
1999-01-01	801.19700000000000
2000-01-01	821.82800000000000
2001-01-01	849.18300000000000
2002-01-01	873.87700000000000
2003-01-01	991.37700000000000
2004-01-01	1019.02000000000000
2005-01-01	1072.53000000000000
2006-01-01	1167.19000000000000
2007-01-01	1248.89000000000000
2008-01-01	1288.96000000000000
2009-01-01	1131.93000000000000
2010-01-01	1117.99000000000000
2011-01-01	1101.73000000000000
2012-01-01	1110.89000000000000
2013-01-01	1109.16000000000000
2014-01-01	1116.14000000000000
2015-01-01	1172.51000000000000
2016-01-01	1134.38000000000000