Year	Percent Change
1972-01-01	8.3881902826792400
1973-01-01	10.3757354611344000
1974-01-01	20.5905859796009000
1975-01-01	21.2127232950987000
1976-01-01	12.1924804294468000
1977-01-01	7.1127552774077800
1978-01-01	4.7621431016019600
1979-01-01	5.1206857394474100
1980-01-01	8.4466660769690300
1981-01-01	6.5191230504457200
1982-01-01	19.9602344806420000
1983-01-01	14.6621303678873000
1984-01-01	4.4499827185482600
1985-01-01	5.2995526870061600
1986-01-01	7.4375145690276000
1987-01-01	4.4660049467963600
1988-01-01	7.4427107717694800
1989-01-01	10.0294583753372000
1990-01-01	7.4354394591402200
1991-01-01	0.9295629662002150
1992-01-01	2.0547045549222500
1993-01-01	0.0307711481718953
1994-01-01	-0.6886638177247980
1995-01-01	3.6333134858393200
1996-01-01	2.1862749095077800
1997-01-01	2.2213453272690400
1998-01-01	0.6000042831465580
1999-01-01	0.9879934010829900
2000-01-01	1.7540034311896100
2001-01-01	2.4989214743023200
2002-01-01	-1.2288031827219500
2003-01-01	1.9951368288531400
2004-01-01	2.0932142452407300
2005-01-01	3.7450310496102400
2006-01-01	4.6744536417507200
2007-01-01	6.6545461802422900
2008-01-01	3.0389138297954400
2009-01-01	-1.1772423576558200
2010-01-01	1.4092407766649500