Year	Percent Change
1970-01-01	9.1396637962921400
1971-01-01	10.1293823870813000
1972-01-01	7.2792738512964800
1973-01-01	10.0288446085991000
1974-01-01	12.2878909635891000
1975-01-01	13.5460897891479000
1976-01-01	5.1121782780274800
1977-01-01	6.1860193035521800
1978-01-01	4.1902196953248100
1979-01-01	5.5030876029624100
1980-01-01	-1.7176963943947100
1981-01-01	2.6985140266682500
1982-01-01	4.6646166903686200
1983-01-01	0.0124735021989040
1984-01-01	-1.3858496895905500
1985-01-01	2.7604869885992800
1986-01-01	1.9671553435677600
1987-01-01	-0.3161071147233350
1988-01-01	0.0517158058052112
1989-01-01	-0.5657181669495560
1990-01-01	1.7171178297198000
1991-01-01	3.8761353496933600
1992-01-01	4.5717059894749800
1993-01-01	2.6458875236780500
1994-01-01	0.7418299815993460
1995-01-01	0.9423071422044070
1996-01-01	1.2313835339626700
1997-01-01	-0.5464566474413900
1998-01-01	1.3500148510088700
1999-01-01	1.6877715314828800
2000-01-01	2.8119765871930700
2001-01-01	4.7524374361121400
2002-01-01	3.8845983846827600
2003-01-01	0.7473120654707380
2004-01-01	-0.2293570363191980
2005-01-01	-0.4823788351843710
2006-01-01	0.6222299158056720
2007-01-01	1.3721249810340800
2008-01-01	2.0347107797753600
2009-01-01	1.1134557003441600
2010-01-01	-0.2272204635421340