Year	Index 2010=1
1988-01-01	0.698142987774417
1989-01-01	0.716951188304653
1990-01-01	0.740797399301545
1991-01-01	0.764337000799081
1992-01-01	0.789604376601100
1993-01-01	0.831125295721784
1994-01-01	0.847342787300056
1995-01-01	0.833438397692744
1996-01-01	0.830470477553039
1997-01-01	0.825193816427904
1998-01-01	0.826948735555320
1999-01-01	0.837978901930005
2000-01-01	0.842331763444546
2001-01-01	0.842734490185708
2002-01-01	0.844620040994981
2003-01-01	0.863557765426382
2004-01-01	0.874269628814268
2005-01-01	0.896941993277548
2006-01-01	0.906493496429172
2007-01-01	0.915152535043043
2008-01-01	0.948847324059947
2009-01-01	0.996332476795284
2010-01-01	1.000000000000000