Year	Percent Change
1967-01-01	10.2976191577307000
1968-01-01	8.7697331710577400
1969-01-01	3.9224032959088600
1970-01-01	14.9492391804114000
1971-01-01	9.4885308254460600
1972-01-01	8.4544783935921200
1973-01-01	8.7797506362428200
1974-01-01	19.5691492651404000
1975-01-01	18.5016624585111000
1976-01-01	4.9598374852749400
1977-01-01	14.3783712005185000
1978-01-01	8.1176225242498100
1979-01-01	11.5612585318607000
1980-01-01	16.7203435592181000
1981-01-01	11.9662317442416000
1982-01-01	12.8176787341716000
1983-01-01	8.6654036657546400
1984-01-01	5.5341142412765800
1985-01-01	4.4344852453374800
1986-01-01	6.3613070139182800
1987-01-01	12.4942505212204000
1988-01-01	3.8494101113058000
1989-01-01	3.6524937201665100
1990-01-01	0.4526053600584980
1991-01-01	3.4297461718794300
1992-01-01	1.5667294138360500
1993-01-01	-2.0160656568549300
1994-01-01	0.1352010258755730
1995-01-01	5.9982613862171300
1996-01-01	3.8380449605532800
1997-01-01	0.2434787281242080
1998-01-01	6.5644253234051100
1999-01-01	6.7005049630541100
2000-01-01	3.3362426724099300
2001-01-01	7.3844637376708000
2002-01-01	6.5542434688276900
2003-01-01	2.7868230880022500
2004-01-01	-0.3677087516927370
2005-01-01	3.4195287758167100
2006-01-01	4.9764974412917600
2007-01-01	5.6599945861654100
2008-01-01	3.5479944168475000
2009-01-01	-1.3169936494549100
2010-01-01	0.0448541652995606