Year	Index 2010=1
1981-01-01	0.333773032152535
1982-01-01	0.388670704833266
1983-01-01	0.434901215909690
1984-01-01	0.464280893555424
1985-01-01	0.500440667633708
1986-01-01	0.522876286287609
1987-01-01	0.540588132021818
1988-01-01	0.557600831786204
1989-01-01	0.592461321809924
1990-01-01	0.641259101465754
1991-01-01	0.694692615533659
1992-01-01	0.711663875525802
1993-01-01	0.732584592539810
1994-01-01	0.708021139660566
1995-01-01	0.717579487773821
1996-01-01	0.748746443844951
1997-01-01	0.766646317599074
1998-01-01	0.761871078274909
1999-01-01	0.768433588875776
2000-01-01	0.752622869527841
2001-01-01	0.775017107154607
2002-01-01	0.800238920319428
2003-01-01	0.847035739506439
2004-01-01	0.859848775255319
2005-01-01	0.873476346154928
2006-01-01	0.877963677562280
2007-01-01	0.900502073222408
2008-01-01	0.959209019975186
2009-01-01	1.049910111702020
2010-01-01	1.000000000000000