Year	Index 2010=1
1981-01-01	0.180846560526295
1982-01-01	0.205596116299142
1983-01-01	0.230545578789750
1984-01-01	0.243942693457092
1985-01-01	0.276161803856942
1986-01-01	0.309004034862163
1987-01-01	0.325766536489290
1988-01-01	0.348273645404142
1989-01-01	0.368834162523502
1990-01-01	0.414421755469221
1991-01-01	0.458343610520126
1992-01-01	0.497574525185937
1993-01-01	0.529294961276705
1994-01-01	0.545562833093059
1995-01-01	0.550446371318560
1996-01-01	0.562615458226265
1997-01-01	0.612542614552732
1998-01-01	0.588204075916908
1999-01-01	0.621564467417414
2000-01-01	0.627126653555596
2001-01-01	0.638303886908148
2002-01-01	0.656013751560661
2003-01-01	0.693405925947276
2004-01-01	0.715939787549061
2005-01-01	0.745775115042108
2006-01-01	0.756448168092810
2007-01-01	0.801832410555379
2008-01-01	0.859534709026240
2009-01-01	0.942761393119517
2010-01-01	1.000000000000000