Year	Percent Change
1977-01-01	4.3355307741125400
1978-01-01	10.8579048430645000
1979-01-01	-2.3047285612226800
1980-01-01	7.3222065067263900
1981-01-01	8.6485732559195700
1982-01-01	-0.6355765155127960
1983-01-01	0.2300820734992000
1984-01-01	5.6841176786252900
1985-01-01	4.1657392371484400
1986-01-01	3.0325743173988400
1987-01-01	2.3704248531696800
1988-01-01	0.8891474273352650
1989-01-01	2.2794311389381400
1990-01-01	4.4749930808952700
1991-01-01	4.1234237018266700
1992-01-01	4.9846860498875700
1993-01-01	3.6146494264418700
1994-01-01	1.0112864263187800
1995-01-01	0.3341289460897200
1996-01-01	1.1645157474722900
1997-01-01	-0.0294640296662903
1998-01-01	0.0312300199502531
1999-01-01	1.0270299009956300
2000-01-01	0.3987768181783730
2001-01-01	1.1520985850661800
2002-01-01	0.5258498486892190
2003-01-01	2.0922206348335000
2004-01-01	0.7695451073091190
2005-01-01	1.9677025451407400
2006-01-01	1.4314606949121000
2007-01-01	1.6592845565767500
2008-01-01	3.0340593738139300
2009-01-01	3.0396752496429500
2010-01-01	0.9011326985763960