Year	Index 2010=1
1988-01-01	0.809966131670610
1989-01-01	0.824787918294721
1990-01-01	0.846333678475229
1991-01-01	0.883084202786231
1992-01-01	0.918972036055820
1993-01-01	0.937563233836680
1994-01-01	0.938962612803505
1995-01-01	0.910865628385942
1996-01-01	0.911707598737038
1997-01-01	0.901422294925482
1998-01-01	0.899339428378744
1999-01-01	0.902176870212664
2000-01-01	0.900608755971552
2001-01-01	0.905425121675937
2002-01-01	0.907954319181689
2003-01-01	0.918644542262314
2004-01-01	0.911346483476890
2005-01-01	0.915489552675447
2006-01-01	0.921399509496663
2007-01-01	0.927352571742356
2008-01-01	0.957145166669171
2009-01-01	1.005639551061780
2010-01-01	1.000000000000000