Year	Index 2010=1
1981-01-01	0.547024404167261
1982-01-01	0.575210503781933
1983-01-01	0.592122163550735
1984-01-01	0.618096189524761
1985-01-01	0.628728414442700
1986-01-01	0.629656058227487
1987-01-01	0.650563721992294
1988-01-01	0.694162979877266
1989-01-01	0.707506778935350
1990-01-01	0.698515769944342
1991-01-01	0.678607107178536
1992-01-01	0.675396032538890
1993-01-01	0.698872556015413
1994-01-01	0.753817610960468
1995-01-01	0.830740687883545
1996-01-01	0.822391893820465
1997-01-01	0.821178821178821
1998-01-01	0.807977736549165
1999-01-01	0.820536606250892
2000-01-01	0.864992150706437
2001-01-01	0.862708719851577
2002-01-01	0.856429285000714
2003-01-01	0.854359925788497
2004-01-01	0.902740117025831
2005-01-01	0.926787498216070
2006-01-01	0.962822891394320
2007-01-01	0.985443128300271
2008-01-01	1.034108748394460
2009-01-01	0.976309404880834
2010-01-01	1.000000000000000
2011-01-01	1.056015413158270
2012-01-01	1.057299843014130