Year	Percent Change
1996-01-01	7.833767490139250
1997-01-01	5.218957413647240
1998-01-01	4.961128500057570
1999-01-01	4.772298704172770
2000-01-01	7.275851710516410
2001-01-01	8.376536037620820
2002-01-01	5.395237463249870
2003-01-01	4.146120565996990
2004-01-01	3.563124390629830
2005-01-01	1.851084109534250
2006-01-01	0.773682026940947
2007-01-01	2.266022570408390
2008-01-01	6.796559027558440
2009-01-01	6.027791685464320
2010-01-01	1.837868430623330