Year	Percent Change
1971-01-01	2.913004062251500
1972-01-01	4.264295456259000
1973-01-01	5.512512598523900
1974-01-01	15.591575915695300
1975-01-01	8.425313592881960
1976-01-01	14.884055752609700
1977-01-01	4.468223427082770
1978-01-01	0.797654336658951
1979-01-01	0.340640329929554
1980-01-01	3.447478285852820
1981-01-01	2.479427936858620
1982-01-01	0.884315348447816
1983-01-01	0.658780465372906
1984-01-01	1.052416309839600
1985-01-01	3.193477432393540
1986-01-01	2.373843386880630
1987-01-01	1.537852388653490
1988-01-01	-0.322257152045248
1989-01-01	0.195504465918074
1990-01-01	4.671249196292690
1991-01-01	5.877266424437140
1992-01-01	3.302269530335710
1993-01-01	3.675560805393950
1994-01-01	-0.285909745956439
1995-01-01	-2.434726724319300
1996-01-01	-1.083205386982550
1997-01-01	-3.412018467658120
1998-01-01	-0.996563047204186
1999-01-01	0.935153031981605
2000-01-01	-1.341141281686730
2001-01-01	1.596471808805690
2002-01-01	2.021173870039220
2003-01-01	0.775568793187628
2004-01-01	-1.975707148703280
2005-01-01	-0.477940189841498
2006-01-01	1.904405912020060
2007-01-01	0.551139189062939
2008-01-01	3.054142059117780
2009-01-01	3.779265640685800
2010-01-01	-2.569348301640880