Year	Index 2010=1
1988-01-01	0.698124180795267
1989-01-01	0.714502640067254
1990-01-01	0.740463014652504
1991-01-01	0.763597412169179
1992-01-01	0.790887057775214
1993-01-01	0.828016018293336
1994-01-01	0.844180486851961
1995-01-01	0.830840159040354
1996-01-01	0.833263060721695
1997-01-01	0.824967230688349
1998-01-01	0.825207940656066
1999-01-01	0.837389743332276
2000-01-01	0.841441583708461
2001-01-01	0.842327862867491
2002-01-01	0.844083009305378
2003-01-01	0.862872206897808
2004-01-01	0.878163041597807
2005-01-01	0.895906718635995
2006-01-01	0.904858994178995
2007-01-01	0.915338672015348
2008-01-01	0.953277220262822
2009-01-01	0.997017808512426
2010-01-01	1.000000000000000