Year	Index 2010=1
1970-01-01	0.373272156085317
1971-01-01	0.406931528072694
1972-01-01	0.431775010454869
1973-01-01	0.464197603333070
1974-01-01	0.505447791998607
1975-01-01	0.538434392069202
1976-01-01	0.549909588368098
1977-01-01	0.568975301866721
1978-01-01	0.589670110212246
1979-01-01	0.609343690392440
1980-01-01	0.656774966489958
1981-01-01	0.689734879070620
1982-01-01	0.723824402135243
1983-01-01	0.726732577083997
1984-01-01	0.734770036633148
1985-01-01	0.739748804448361
1986-01-01	0.763545853794948
1987-01-01	0.787435473871917
1988-01-01	0.790030841584799
1989-01-01	0.793274830897741
1990-01-01	0.814702976979648
1991-01-01	0.842913624623572
1992-01-01	0.906199093807678
1993-01-01	0.949016478284314
1994-01-01	0.949068729548590
1995-01-01	0.967808744473534
1996-01-01	0.975391086449269
1997-01-01	0.959448082228124
1998-01-01	0.958486804138624
1999-01-01	0.963539166428149
2000-01-01	0.964168127873524
2001-01-01	0.967912688669540
2002-01-01	0.972037774415133
2003-01-01	0.975634808174204
2004-01-01	0.961041526047918
2005-01-01	0.950916810612105
2006-01-01	0.930750955374302
2007-01-01	0.924796542898344
2008-01-01	0.953928489939886
2009-01-01	1.031449179197470
2010-01-01	1.000000000000000