Year	Index 2010=1
1978-01-01	0.486217475872040
1979-01-01	0.471155594982096
1980-01-01	0.497324521669650
1981-01-01	0.549446943515875
1982-01-01	0.621478791911150
1983-01-01	0.656115033391654
1984-01-01	0.665349620159803
1985-01-01	0.670675924727026
1986-01-01	0.726063903611775
1987-01-01	0.798918352834026
1988-01-01	0.853988096866360
1989-01-01	0.870530891833322
1990-01-01	0.861268454258057
1991-01-01	0.878789240590566
1992-01-01	0.892969910965128
1993-01-01	0.868824565030672
1994-01-01	0.854167276377036
1995-01-01	0.850714657351932
1996-01-01	0.818577163155977
1997-01-01	0.811511892354735
1998-01-01	0.834751167966871
1999-01-01	0.862629446663356
2000-01-01	0.878257863359978
2001-01-01	0.896820481177640
2002-01-01	0.916468437979576
2003-01-01	0.912766950039476
2004-01-01	0.896990624210142
2005-01-01	0.903922530642508
2006-01-01	0.850634004510916
2007-01-01	0.900369093604934
2008-01-01	0.951415471820135
2009-01-01	0.990428869713827
2010-01-01	1.000000000000000