Year	Percent Change
1971-01-01	8.9815219228650300
1972-01-01	4.6106685708482500
1973-01-01	5.9265050433389500
1974-01-01	8.4703533625976400
1975-01-01	6.4774444082898500
1976-01-01	1.5584789982250800
1977-01-01	4.8674371211514300
1978-01-01	4.9148932935629900
1979-01-01	3.3375111748297300
1980-01-01	8.5044084453466400
1981-01-01	5.6599427323090900
1982-01-01	4.3531284704704800
1983-01-01	0.9625268098509030
1984-01-01	0.4279391010551370
1985-01-01	1.2868556852378900
1986-01-01	4.7910066435445700
1987-01-01	4.5293808360308400
1988-01-01	0.1929502485690620
1989-01-01	-0.1332859092687070
1990-01-01	3.4702039229106700
1991-01-01	3.3431624836401000
1992-01-01	7.7477072581431000
1993-01-01	4.4731192022995100
1994-01-01	-2.1413032144532600
1995-01-01	2.4413559296812800
1996-01-01	1.1900511558325600
1997-01-01	-3.2198251613667600
1998-01-01	0.4015067251157580
1999-01-01	-0.0903221773274415
2000-01-01	-1.6845234283006000
2001-01-01	1.0281569529139500
2002-01-01	0.6026751059247960
2003-01-01	-1.0422316918771100
2004-01-01	-3.7966977070962700
2005-01-01	-2.5166040146890000
2006-01-01	-2.6215692406279500
2007-01-01	-1.7588830337242600
2008-01-01	4.3161328236595800
2009-01-01	5.3175786175184000
2010-01-01	0.2033494496133590