Year	Percent Change
1971-01-01	8.9169980397364000
1972-01-01	12.6150923037381000
1973-01-01	15.3882319481286000
1974-01-01	26.0829565473116000
1975-01-01	17.5946132725467000
1976-01-01	16.3190979173910000
1977-01-01	15.8350840067666000
1978-01-01	20.7943093894071000
1979-01-01	19.4121773603472000
1980-01-01	18.5167950771858000
1981-01-01	21.0198078033652000
1982-01-01	6.1350045222124200
1983-01-01	14.5215067294198000
1984-01-01	5.8845556256684100
1985-01-01	3.4463043383992300
1986-01-01	2.3805659811529500
1987-01-01	4.6705799203463300
1988-01-01	4.6062015808238700
1989-01-01	-0.5107645349308870
1990-01-01	4.6227518082903700
1991-01-01	12.5164105823942000
1992-01-01	9.7263295610081500
1993-01-01	10.8434663250443000
1994-01-01	8.4412862705467700
1995-01-01	9.3880212498966000
1996-01-01	6.0883161203996400
1997-01-01	-1.4366009857424800
1998-01-01	-0.0961504949482597
1999-01-01	1.2557810268380300
2000-01-01	-3.8091706917804500
2001-01-01	0.1724757296483910
2002-01-01	-0.4387608197057150
2003-01-01	4.4358494809160900
2004-01-01	0.9320393413419360
2005-01-01	-0.3718355293411330
2006-01-01	-0.6541405600669070
2007-01-01	0.4918456763169600
2008-01-01	4.6377842026163400
2009-01-01	5.2039760925456000
2010-01-01	-1.1877775663223200