Year	Index 2010=1
1975-01-01	0.273555011194981
1976-01-01	0.323960345821347
1977-01-01	0.356758219074229
1978-01-01	0.367220264064390
1979-01-01	0.392246145267673
1980-01-01	0.444347174480618
1981-01-01	0.497671846325948
1982-01-01	0.533838311831980
1983-01-01	0.567399878562175
1984-01-01	0.603608572658149
1985-01-01	0.634164695625851
1986-01-01	0.652307634908336
1987-01-01	0.675467323321546
1988-01-01	0.717990742530343
1989-01-01	0.751400017905658
1990-01-01	0.805108250704638
1991-01-01	0.851685760964740
1992-01-01	0.874652830179319
1993-01-01	0.848376697234138
1994-01-01	0.814016175945102
1995-01-01	0.812790460409600
1996-01-01	0.820158744465080
1997-01-01	0.823982902055939
1998-01-01	0.822865578861756
1999-01-01	0.825191257153196
2000-01-01	0.824859054789474
2001-01-01	0.819532836032254
2002-01-01	0.833259437340217
2003-01-01	0.842475328926201
2004-01-01	0.822091716091472
2005-01-01	0.835813703259503
2006-01-01	0.851823104084066
2007-01-01	0.840147629545865
2008-01-01	0.897689911103311
2009-01-01	1.034927562749910
2010-01-01	1.000000000000000