Year	Index 2010=1
1981-01-01	0.180906047373548
1982-01-01	0.205561107598611
1983-01-01	0.230566208160826
1984-01-01	0.244113676110068
1985-01-01	0.276186090855753
1986-01-01	0.308973584703555
1987-01-01	0.325733314083212
1988-01-01	0.348257988751708
1989-01-01	0.368810404502918
1990-01-01	0.414089386685702
1991-01-01	0.458117882203550
1992-01-01	0.497449244784677
1993-01-01	0.528854186367709
1994-01-01	0.545160475649378
1995-01-01	0.550349253386878
1996-01-01	0.562602134363326
1997-01-01	0.612354146744942
1998-01-01	0.588714782915777
1999-01-01	0.622065320224724
2000-01-01	0.627370912773490
2001-01-01	0.638205958896294
2002-01-01	0.656049428105491
2003-01-01	0.693327764615301
2004-01-01	0.716415303590104
2005-01-01	0.746063793565684
2006-01-01	0.756051022556935
2007-01-01	0.801060460561612
2008-01-01	0.859258689477660
2009-01-01	0.942958953749202
2010-01-01	1.000000000000000