Year	Percent Change
1970-01-01	4.556264971817420
1971-01-01	7.400378256662340
1972-01-01	8.631485471889280
1973-01-01	7.022206318538650
1974-01-01	10.202991049064700
1975-01-01	8.492068403792960
1976-01-01	1.469877797364800
1977-01-01	4.633742451144860
1978-01-01	3.868709111167510
1979-01-01	4.257409943233740
1980-01-01	3.525200224392760
1981-01-01	2.276252161099330
1982-01-01	4.661214440654870
1983-01-01	-0.825390392530215
1984-01-01	-3.088845502077460
1985-01-01	1.641252494698110
1986-01-01	0.970512685975459
1987-01-01	-0.341887374469625
1988-01-01	-1.871733584643380
1989-01-01	-2.078908613845220
1990-01-01	2.641397427775040
1991-01-01	4.478343120061390
1992-01-01	3.849019189631790
1993-01-01	0.775241721668243
1994-01-01	-4.046936857476620
1995-01-01	-1.524863805285090
1996-01-01	0.141492413231276
1997-01-01	1.500910227466520
1998-01-01	1.465062470825880
1999-01-01	-0.399940278585603
2000-01-01	-2.136988638573950
2001-01-01	3.342960166543560
2002-01-01	2.521433062771980
2003-01-01	1.527083058628870
2004-01-01	-2.029757566138080
2005-01-01	-2.627990549642150
2006-01-01	-1.505468343978320
2007-01-01	-1.328298350186780
2008-01-01	5.482921414859200
2009-01-01	2.166664984914860
2010-01-01	-3.387581585034220