Year	Index 2010=1
1988-01-01	0.624994326234365
1989-01-01	0.641341431509586
1990-01-01	0.655286355814729
1991-01-01	0.668840093747488
1992-01-01	0.678211623658832
1993-01-01	0.679848362114443
1994-01-01	0.667397475939326
1995-01-01	0.676800647944132
1996-01-01	0.696572455545420
1997-01-01	0.704522022121564
1998-01-01	0.731138101903878
1999-01-01	0.742960179656554
2000-01-01	0.744188225618691
2001-01-01	0.775401537302164
2002-01-01	0.803931955593370
2003-01-01	0.821699584593402
2004-01-01	0.830592163528664
2005-01-01	0.854253545393059
2006-01-01	0.873874846904567
2007-01-01	0.912904358266672
2008-01-01	0.967864538667982
2009-01-01	1.008448316123880
2010-01-01	1.000000000000000