Year	Percent Change
1972-01-01	7.630909104480910
1973-01-01	9.138006326020830
1974-01-01	18.612314740030900
1975-01-01	15.699787718565200
1976-01-01	3.591227071297850
1977-01-01	9.175276381743880
1978-01-01	9.038535962219110
1979-01-01	-0.397475255045254
1980-01-01	7.186659143263180
1981-01-01	7.833360711825360
1982-01-01	17.495005222011400
1983-01-01	13.756969440445000
1984-01-01	-3.119057104397240
1985-01-01	6.558433952946210
1986-01-01	9.393655466513040
1987-01-01	2.088962160020540
1988-01-01	2.065593610294430
1989-01-01	6.402356032909140
1990-01-01	12.552394268856100
1991-01-01	3.403101220348960
1992-01-01	-5.527977318130460
1993-01-01	-0.441995139259055
1994-01-01	-0.317075956340818
1995-01-01	0.842238454066649
1996-01-01	-0.953806436571986
1997-01-01	-0.100002735503043
1998-01-01	-4.564364173817340
1999-01-01	-0.248545793174482
2000-01-01	4.469001404629190
2001-01-01	8.752695868976830
2002-01-01	-1.838289499611040
2003-01-01	-0.302716721534555
2004-01-01	3.471791666384770
2005-01-01	2.886331485399020
2006-01-01	3.787577112777880
2007-01-01	5.741679403236260
2008-01-01	3.760979101263380
2009-01-01	3.403731291597270
2010-01-01	2.337082829163460