Year	Index 2010=1
1988-01-01	0.623151868433745
1989-01-01	0.627205902591385
1990-01-01	0.671410195660084
1991-01-01	0.716221858984522
1992-01-01	0.756625508505056
1993-01-01	0.782243467132472
1994-01-01	0.823196942357412
1995-01-01	0.826657373525374
1996-01-01	0.841682659943329
1997-01-01	0.848198343644891
1998-01-01	0.847976332387349
1999-01-01	0.853941537380074
2000-01-01	0.850533041294330
2001-01-01	0.883869042672971
2002-01-01	0.884790237194884
2003-01-01	0.915002158860467
2004-01-01	0.903467010919670
2005-01-01	0.917852727448043
2006-01-01	0.935666749083342
2007-01-01	0.960146576258896
2008-01-01	0.978088307844831
2009-01-01	0.986074551668132
2010-01-01	1.000000000000000