Year	Index 2010=1
1998-01-01	0.788226238567563
1999-01-01	0.800363680002276
2000-01-01	0.818723580246397
2001-01-01	0.869030746887884
2002-01-01	0.914448117163550
2003-01-01	0.948962319693014
2004-01-01	0.952646468008550
2005-01-01	0.935488668752300
2006-01-01	0.921707243735661
2007-01-01	0.936669820190696
2008-01-01	0.977254972059902
2009-01-01	1.003616903075570
2010-01-01	1.000000000000000