Year	Index 2010=1
1981-01-01	0.319975025635508
1982-01-01	0.373085984862338
1983-01-01	0.419017557498461
1984-01-01	0.447895866265879
1985-01-01	0.478297324496684
1986-01-01	0.502187655040959
1987-01-01	0.519468069963297
1988-01-01	0.534921885290379
1989-01-01	0.569789105190100
1990-01-01	0.614928658671950
1991-01-01	0.666433206848922
1992-01-01	0.682022947339448
1993-01-01	0.701777091229737
1994-01-01	0.679663394027720
1995-01-01	0.686198433583102
1996-01-01	0.721131039447745
1997-01-01	0.739002256592018
1998-01-01	0.734866198198662
1999-01-01	0.747704834412276
2000-01-01	0.730481434745639
2001-01-01	0.754096904837151
2002-01-01	0.783750185943846
2003-01-01	0.830686628764579
2004-01-01	0.846656115503069
2005-01-01	0.860458896634018
2006-01-01	0.863993335961651
2007-01-01	0.884654199553506
2008-01-01	0.953600980171394
2009-01-01	1.050183013165010
2010-01-01	1.000000000000000