Year	Percent Change
1967-01-01	6.3118568580852300
1968-01-01	3.5898128654144700
1969-01-01	6.0486468107994400
1970-01-01	8.7064715040319000
1971-01-01	8.4664102627654400
1972-01-01	4.7952281147367800
1973-01-01	9.8590881637681900
1974-01-01	19.5064896496455000
1975-01-01	13.1243083673154000
1976-01-01	7.2745083757578400
1977-01-01	9.9792482417571600
1978-01-01	9.4527993657448400
1979-01-01	6.1262227400373600
1980-01-01	9.4254575481216100
1981-01-01	8.3957902700561000
1982-01-01	6.5343271156349400
1983-01-01	5.5629096176191400
1984-01-01	5.0194265010364100
1985-01-01	4.3326795128442600
1986-01-01	4.2738609924098500
1987-01-01	7.0593648173456000
1988-01-01	2.4000976906230900
1989-01-01	4.8646776149188600
1990-01-01	2.1987305184299500
1991-01-01	-0.3678339380408440
1992-01-01	0.4198311892356950
1993-01-01	0.9644004474323380
1994-01-01	-2.3728542154021500
1995-01-01	1.1032777122481000
1996-01-01	2.0603839530853800
1997-01-01	1.4261165273057500
1998-01-01	3.8290713037735800
1999-01-01	0.6430348733158270
2000-01-01	0.0275257910348003
2001-01-01	3.7838280446243100
2002-01-01	3.7601090226140500
2003-01-01	1.6217612417802300
2004-01-01	0.1666558852203740
2005-01-01	3.5492860043630200
2006-01-01	2.8863456690306100
2007-01-01	5.4735498675195200
2008-01-01	4.9833268061346100
2009-01-01	2.6247147958220000
2010-01-01	-0.8848742013938700