Year	Index 2010=1
1975-01-01	0.320085361286014
1976-01-01	0.366938373757545
1977-01-01	0.393119103787810
1978-01-01	0.400675672614488
1979-01-01	0.426050009730484
1980-01-01	0.473127314947021
1981-01-01	0.528134799480830
1982-01-01	0.571746089696413
1983-01-01	0.605234989419604
1984-01-01	0.646540604523209
1985-01-01	0.680667568401352
1986-01-01	0.705969323957098
1987-01-01	0.735730845325874
1988-01-01	0.781622601767652
1989-01-01	0.829419164575610
1990-01-01	0.897533121711849
1991-01-01	0.937941977124911
1992-01-01	0.905447125512518
1993-01-01	0.856626124476300
1994-01-01	0.826649951826922
1995-01-01	0.857763146745564
1996-01-01	0.858280122436121
1997-01-01	0.857435938078228
1998-01-01	0.866518898081790
1999-01-01	0.869719694838048
2000-01-01	0.865767787853639
2001-01-01	0.892018637535808
2002-01-01	0.891179712374843
2003-01-01	0.891314996729813
2004-01-01	0.878221660764089
2005-01-01	0.895973648223801
2006-01-01	0.892602715371622
2007-01-01	0.882834087355144
2008-01-01	0.940117391333945
2009-01-01	1.036814472680730
2010-01-01	1.000000000000000