Year	Percent Change
1971-01-01	6.8271664509503000
1972-01-01	5.6897012363974800
1973-01-01	9.1694005806459000
1974-01-01	11.4741495544369000
1975-01-01	13.2015073436405000
1976-01-01	4.5697492768217800
1977-01-01	5.2421828044951800
1978-01-01	7.4504297821014800
1979-01-01	-0.5702255611446460
1980-01-01	3.2351902240124100
1981-01-01	5.9075771912095200
1982-01-01	2.3170490544721700
1983-01-01	-2.1454308077649300
1984-01-01	3.1492433524145000
1985-01-01	-0.9125091634303760
1986-01-01	1.7342155592811600
1987-01-01	2.2862892485055800
1988-01-01	-2.0644924345653300
1989-01-01	0.5523130344448480
1990-01-01	1.9717280045420600
1991-01-01	4.8345309892171500
1992-01-01	4.1500424106289600
1993-01-01	1.7491822428013700
1994-01-01	-0.9702931775846950
1995-01-01	-3.0490152344267100
1996-01-01	-1.4489276908470100
1997-01-01	-1.7078916013892200
1998-01-01	-0.0758545976128397
1999-01-01	-1.6972697201251900
2000-01-01	-3.3923776691826600
2001-01-01	-0.6435009099789910
2002-01-01	1.2415425731565500
2003-01-01	0.2489480463484680
2004-01-01	-1.6540416066307000
2005-01-01	-0.6622171912725920
2006-01-01	-1.9082573114297100
2007-01-01	-0.8358895683342310
2008-01-01	3.0131652596108200
2009-01-01	8.3618110811532800
2010-01-01	-3.6270241072729500