Year	Index 2010=1
1978-01-01	0.229811378815567
1979-01-01	0.266160441082565
1980-01-01	0.304362266733394
1981-01-01	0.346171511229103
1982-01-01	0.395480417683430
1983-01-01	0.436102794072534
1984-01-01	0.480307009874311
1985-01-01	0.499964304805510
1986-01-01	0.496040993133735
1987-01-01	0.510294632662935
1988-01-01	0.512308353582900
1989-01-01	0.528884450968584
1990-01-01	0.536262318230152
1991-01-01	0.547681753328322
1992-01-01	0.558825933012798
1993-01-01	0.601457623868799
1994-01-01	0.611856353693271
1995-01-01	0.603585311207465
1996-01-01	0.626478784933524
1997-01-01	0.635519825011025
1998-01-01	0.641481798907035
1999-01-01	0.633054617015637
2000-01-01	0.649999533408985
2001-01-01	0.655363974164045
2002-01-01	0.701264337367499
2003-01-01	0.740325221655710
2004-01-01	0.777849207254763
2005-01-01	0.803656155608499
2006-01-01	0.851873368607369
2007-01-01	0.879425846719127
2008-01-01	0.923407298213408
2009-01-01	0.954061952988170
2010-01-01	1.000000000000000