Year	Percent Change
1972-01-01	6.534966172307070
1973-01-01	9.160463547763590
1974-01-01	18.925807478718300
1975-01-01	18.601906833862300
1976-01-01	9.982926841070310
1977-01-01	7.715133354452260
1978-01-01	5.682109208177970
1979-01-01	4.172076807315710
1980-01-01	9.647410279935180
1981-01-01	9.749519389380730
1982-01-01	17.102241340274000
1983-01-01	11.403489304065100
1984-01-01	2.040909223691850
1985-01-01	3.499459277572240
1986-01-01	7.899599638132480
1987-01-01	2.244715513309570
1988-01-01	4.606397166968470
1989-01-01	8.579498234117820
1990-01-01	7.507860738629050
1991-01-01	-0.146821971984825
1992-01-01	0.608874031468968
1993-01-01	-0.468221754613755
1994-01-01	-0.201274888622971
1995-01-01	2.990488500015120
1996-01-01	2.223790680920680
1997-01-01	1.665870196544560
1998-01-01	-0.379367405984740
1999-01-01	0.915786953128366
2000-01-01	2.220629028322260
2001-01-01	2.793871551461570
2002-01-01	-0.302582394337383
2003-01-01	2.023683841255810
2004-01-01	2.943444768526330
2005-01-01	4.585951241587870
2006-01-01	4.619038890952940
2007-01-01	6.411385894734590
2008-01-01	4.831471119920930
2009-01-01	0.429531298750177
2010-01-01	1.235005334790160