Year	Index 2010=1
1970-01-01	0.297204066101498
1971-01-01	0.293312761168304
1972-01-01	0.296647549093078
1973-01-01	0.302507489788738
1974-01-01	0.328821655443236
1975-01-01	0.342052592309774
1976-01-01	0.347587799793977
1977-01-01	0.361771427792088
1978-01-01	0.375257245735235
1979-01-01	0.397768225637014
1980-01-01	0.435455969583507
1981-01-01	0.464736674146222
1982-01-01	0.515930709151304
1983-01-01	0.511903076766418
1984-01-01	0.525488065464921
1985-01-01	0.549131384508687
1986-01-01	0.556474867783127
1987-01-01	0.600988351774467
1988-01-01	0.641015921749210
1989-01-01	0.646512116029194
1990-01-01	0.677879005773427
1991-01-01	0.692950477988429
1992-01-01	0.704819312199551
1993-01-01	0.706884464877120
1994-01-01	0.718684254870315
1995-01-01	0.760930151407961
1996-01-01	0.785572940546850
1997-01-01	0.812123916996696
1998-01-01	0.856292179742815
1999-01-01	0.873280737186368
2000-01-01	0.906762682247654
2001-01-01	0.903049714836738
2002-01-01	0.883767976603966
2003-01-01	0.872790570506688
2004-01-01	0.912697866325521
2005-01-01	0.918206767027651
2006-01-01	0.949725321087435
2007-01-01	0.994713391544989
2008-01-01	1.008430329580380
2009-01-01	1.008914927489980
2010-01-01	1.000000000000000