Year	Index 2010=1
1970-01-01	0.386709294490952
1971-01-01	0.421389154055622
1972-01-01	0.452162352640562
1973-01-01	0.492009423618546
1974-01-01	0.538219745876026
1975-01-01	0.575000091565462
1976-01-01	0.592265768201375
1977-01-01	0.604508353339072
1978-01-01	0.616915085065142
1979-01-01	0.634007742888113
1980-01-01	0.673544456425186
1981-01-01	0.703586270343145
1982-01-01	0.736956000050420
1983-01-01	0.742305774787021
1984-01-01	0.750616369109024
1985-01-01	0.757377065443403
1986-01-01	0.769296692564094
1987-01-01	0.781900011362534
1988-01-01	0.783730076186363
1989-01-01	0.791118415458754
1990-01-01	0.799641338704500
1991-01-01	0.822446852186422
1992-01-01	0.886274818593153
1993-01-01	0.923421577419114
1994-01-01	0.935937038587697
1995-01-01	0.941978270893948
1996-01-01	0.939772388932019
1997-01-01	0.936734951722785
1998-01-01	0.933703955310368
1999-01-01	0.948262915168015
2000-01-01	0.958304505197074
2001-01-01	0.959022316855976
2002-01-01	0.964037253976408
2003-01-01	0.975716915767680
2004-01-01	0.976086416967003
2005-01-01	0.971945248241075
2006-01-01	0.953527421948776
2007-01-01	0.953039964680296
2008-01-01	0.959038020102216
2009-01-01	1.003367475616200
2010-01-01	1.000000000000000