Year	Percent Change
1971-01-01	15.6820970875004000
1972-01-01	9.9009254602118200
1973-01-01	19.4226975255812000
1974-01-01	16.0007241363905000
1975-01-01	5.8947519079864700
1976-01-01	0.0862552726890436
1977-01-01	5.9845836212449900
1978-01-01	3.6366358132467800
1979-01-01	5.9231530549066400
1980-01-01	6.2156436881858800
1981-01-01	12.9742362786209000
1982-01-01	-4.8726539243705300
1983-01-01	2.1713158750128500
1984-01-01	5.9089029881875200
1985-01-01	3.8973201577272300
1986-01-01	4.4309605866576500
1987-01-01	11.0513774255971000
1988-01-01	10.2510020845894000
1989-01-01	6.0526436882840800
1990-01-01	3.5831808567579500
1991-01-01	2.8720738879035600
1992-01-01	4.5098528505709200
1993-01-01	1.2955128487757700
1994-01-01	-1.0297807029572700
1995-01-01	3.7312708283623900
1996-01-01	-0.6236976746359980
1997-01-01	6.6040983739671800
1998-01-01	0.8460175963302560
1999-01-01	-0.5830563273624600
2000-01-01	2.2186730721767400
2001-01-01	-1.9726633212591200
2002-01-01	-0.0102832112932639
2003-01-01	0.2387916891424010
2004-01-01	2.3011811302115100
2005-01-01	4.5242030456620000
2006-01-01	10.0888200354381000
2007-01-01	8.1938518834028400
2008-01-01	5.0699519027856900
2009-01-01	2.5056640038639000
2010-01-01	-0.6893665805212710