Year	Percent Change
1967-01-01	10.192541345946200
1968-01-01	5.511041439403880
1969-01-01	5.080846723345810
1970-01-01	10.854040421055700
1971-01-01	11.222992864890800
1972-01-01	7.563935224414630
1973-01-01	4.421756150625980
1974-01-01	22.216900727180400
1975-01-01	16.954262538163000
1976-01-01	4.243254688104600
1977-01-01	12.682274694566200
1978-01-01	9.848953651916480
1979-01-01	3.814245849447030
1980-01-01	14.738145832629200
1981-01-01	8.246332147366970
1982-01-01	9.393720560066600
1983-01-01	8.384959263249600
1984-01-01	4.705028920898730
1985-01-01	5.063689265322240
1986-01-01	4.041903900374370
1987-01-01	7.016545363185660
1988-01-01	1.496718988612240
1989-01-01	1.385716144918070
1990-01-01	1.326780465271300
1991-01-01	1.784159735835220
1992-01-01	1.561391433440410
1993-01-01	-0.545924026860546
1994-01-01	-1.228688363750220
1995-01-01	0.891376028544010
1996-01-01	1.681774538977860
1997-01-01	2.711393314439270
1998-01-01	4.267968236808270
1999-01-01	1.138872584778640
2000-01-01	-0.253330446474169
2001-01-01	3.099811311707310
2002-01-01	3.969477846893630
2003-01-01	1.749581112870860
2004-01-01	0.958689996355434
2005-01-01	2.624111850540530
2006-01-01	2.580729688874880
2007-01-01	4.302968812763990
2008-01-01	5.511232347974450
2009-01-01	2.608499908002430
2010-01-01	-0.201808575442883