Year	Percent Change
1967-01-01	10.1747474379185000
1968-01-01	4.6908216264942600
1969-01-01	5.7045633135525500
1970-01-01	9.6425722919803000
1971-01-01	12.1609445752914000
1972-01-01	7.6801735131591700
1973-01-01	2.8259808010655800
1974-01-01	23.6686223501339000
1975-01-01	16.5342986998266000
1976-01-01	3.8631323476489000
1977-01-01	12.1089062545315000
1978-01-01	11.1304170341431000
1979-01-01	1.0030339851941200
1980-01-01	14.1661065817119000
1981-01-01	6.9354447143428900
1982-01-01	7.7761699749128900
1983-01-01	8.5548900221609800
1984-01-01	4.3523836231570000
1985-01-01	5.4038224768365800
1986-01-01	2.9977097326208300
1987-01-01	4.4525459923491800
1988-01-01	3.3853377302845300
1989-01-01	6.0474551192007700
1990-01-01	-2.2764634608768600
1991-01-01	-0.5882594086488880
1992-01-01	1.4986519059776400
1993-01-01	-0.0772815648041444
1994-01-01	-2.3367567762896000
1995-01-01	-1.9402014291372700
1996-01-01	0.5706072594863980
1997-01-01	3.6929524684753900
1998-01-01	3.5892586460124000
1999-01-01	-2.1533638109645000
2000-01-01	-3.0084927677253700
2001-01-01	1.0532144055474600
2002-01-01	2.6167254154119300
2003-01-01	0.9614230009691400
2004-01-01	1.4119177730156300
2005-01-01	2.4086159520314000
2006-01-01	0.4950431431264950
2007-01-01	3.2305021546481000
2008-01-01	11.6673032514691000
2009-01-01	8.3862406285196300
2010-01-01	-5.0618160882849100