Year	Index 2010=1
1980-01-01	0.457823153543984
1981-01-01	0.509381216164906
1982-01-01	0.531867636504249
1983-01-01	0.534564474415003
1984-01-01	0.527742023694910
1985-01-01	0.570053592511426
1986-01-01	0.600344708321554
1987-01-01	0.627634873139570
1988-01-01	0.638069720475737
1989-01-01	0.654770417045144
1990-01-01	0.711243430030320
1991-01-01	0.765179617783924
1992-01-01	0.768244740920809
1993-01-01	0.727147908008022
1994-01-01	0.721474945894071
1995-01-01	0.747486296936076
1996-01-01	0.753300799083464
1997-01-01	0.770971900347001
1998-01-01	0.821685675904006
1999-01-01	0.828926653797466
2000-01-01	0.822301385355336
2001-01-01	0.831082180818906
2002-01-01	0.851859659029386
2003-01-01	0.857094481748493
2004-01-01	0.842072189094664
2005-01-01	0.853493771566125
2006-01-01	0.871206859616601
2007-01-01	0.872030400518406
2008-01-01	0.889106473462184
2009-01-01	0.998900221129785
2010-01-01	1.000000000000000