Year	Percent Change
1972-01-01	7.4723236533197200
1973-01-01	9.7211598478612400
1974-01-01	21.8862416306178000
1975-01-01	22.7746608986463000
1976-01-01	10.7153744856856000
1977-01-01	6.4940213234452700
1978-01-01	5.4044944794790400
1979-01-01	5.6010961509535700
1980-01-01	7.6459180140615200
1981-01-01	5.8321817349281400
1982-01-01	18.2589196660981000
1983-01-01	12.8636677595697000
1984-01-01	2.1318759844052200
1985-01-01	5.0356207734003500
1986-01-01	9.8849097674674400
1987-01-01	5.2092066168289700
1988-01-01	4.3693127821777100
1989-01-01	7.4524234844544200
1990-01-01	8.6274887172032400
1991-01-01	2.3913067866083800
1992-01-01	0.4997888643698170
1993-01-01	-0.5923489546165840
1994-01-01	-2.3311783468969000
1995-01-01	0.0349683011839557
1996-01-01	1.7863995255188300
1997-01-01	2.1530547036253300
1998-01-01	-2.4829640632818800
1999-01-01	1.7076020562441400
2000-01-01	1.7495146165408600
2001-01-01	2.6398466065733700
2002-01-01	-2.8412448845527200
2003-01-01	0.4615100238025230
2004-01-01	1.0269287181715100
2005-01-01	1.3697290495545200
2006-01-01	2.2395554524789400
2007-01-01	4.4240399815905600
2008-01-01	4.2216193963376600
2009-01-01	2.4261420406260000
2010-01-01	1.8091252535083600