Year	Index 2010=1
1975-01-01	0.273716595527311
1976-01-01	0.322630295182699
1977-01-01	0.359505875312772
1978-01-01	0.368948871445232
1979-01-01	0.392517672168604
1980-01-01	0.442354230499807
1981-01-01	0.497628993859303
1982-01-01	0.533276189335972
1983-01-01	0.568132511062310
1984-01-01	0.601801944566285
1985-01-01	0.633968472378249
1986-01-01	0.653526775087528
1987-01-01	0.676907251629996
1988-01-01	0.718384925560564
1989-01-01	0.754269453434469
1990-01-01	0.806460324770749
1991-01-01	0.852937646322469
1992-01-01	0.873125526334341
1993-01-01	0.848486660154819
1994-01-01	0.815245326607916
1995-01-01	0.813631128241473
1996-01-01	0.817568549303516
1997-01-01	0.825081127830814
1998-01-01	0.823937955542806
1999-01-01	0.825454064813671
2000-01-01	0.825986444314963
2001-01-01	0.820379751560951
2002-01-01	0.834612489574144
2003-01-01	0.843961874555096
2004-01-01	0.821075658404394
2005-01-01	0.838835821128632
2006-01-01	0.854235480677466
2007-01-01	0.839437037851346
2008-01-01	0.895231346600780
2009-01-01	1.034994866798730
2010-01-01	1.000000000000000