Year	Index 2010=1
1987-01-01	0.709103891325327
1988-01-01	0.710206453489025
1989-01-01	0.705567606643880
1990-01-01	0.717218496298017
1991-01-01	0.745932486426570
1992-01-01	0.779637467398406
1993-01-01	0.800471828403886
1994-01-01	0.806555931715586
1995-01-01	0.813046512209136
1996-01-01	0.824638996784325
1997-01-01	0.818826903816545
1998-01-01	0.830944070968517
1999-01-01	0.843982664305875
2000-01-01	0.868367496281259
2001-01-01	0.909003653552750
2002-01-01	0.945673388824415
2003-01-01	0.951427170346655
2004-01-01	0.949875763372869
2005-01-01	0.939199755646848
2006-01-01	0.941100927403802
2007-01-01	0.961700055150508
2008-01-01	0.982986902743182
2009-01-01	1.028151543510950
2010-01-01	1.000000000000000