Year	Percent Change
1971-01-01	14.918986436873600
1972-01-01	1.650398244999500
1973-01-01	19.930081295379200
1974-01-01	22.575021996065200
1975-01-01	13.563353498110700
1976-01-01	26.245268870199900
1977-01-01	9.054354961328390
1978-01-01	15.150676228277000
1979-01-01	27.349785489344600
1980-01-01	26.500181821023700
1981-01-01	10.811353226260000
1982-01-01	9.547579404421120
1983-01-01	8.318377416813880
1984-01-01	-0.699741266192642
1985-01-01	2.636456471372260
1986-01-01	4.190601783625700
1987-01-01	3.796422566928270
1988-01-01	14.094860649977900
1989-01-01	3.301363596772430
1990-01-01	4.950533552615440
1991-01-01	14.685157879268400
1992-01-01	4.807137162592680
1993-01-01	3.845005954330700
1994-01-01	6.042340843443610
1995-01-01	10.443654152849200
1996-01-01	5.701553827624300
1997-01-01	-3.850955556060630
1998-01-01	-2.870779168328860
1999-01-01	-11.668879016660300
2000-01-01	-2.238385087864110
2001-01-01	5.183552322364080
2002-01-01	1.308898329705370
2003-01-01	-1.396744009379960
2004-01-01	2.120138098232470
2005-01-01	3.928824529367770
2006-01-01	-1.822920905823160
2007-01-01	-0.663903052241270
2008-01-01	0.865864203679150
2009-01-01	3.099963761286150
2010-01-01	-3.768710754766650