Year	Index 2010=1
1988-01-01	0.653714969386282
1989-01-01	0.675806059064781
1990-01-01	0.683781656400815
1991-01-01	0.693099916269150
1992-01-01	0.699181661148066
1993-01-01	0.709458029925114
1994-01-01	0.690912163893716
1995-01-01	0.698843406846273
1996-01-01	0.713839235039403
1997-01-01	0.723096882696189
1998-01-01	0.752124314059486
1999-01-01	0.756080700654598
2000-01-01	0.755540020516585
2001-01-01	0.785346680498332
2002-01-01	0.814827912154910
2003-01-01	0.828487488261233
2004-01-01	0.827637764449197
2005-01-01	0.859826180509800
2006-01-01	0.882866721117798
2007-01-01	0.931282058880514
2008-01-01	0.992542635117920
2009-01-01	1.029038627075400
2010-01-01	1.000000000000000