Year	Index 2010=1
1988-01-01	0.748173357933928
1989-01-01	0.805941983253206
1990-01-01	0.785325928273746
1991-01-01	0.774139363462098
1992-01-01	0.782904674540769
1993-01-01	0.790339718994747
1994-01-01	0.769575820023962
1995-01-01	0.750647607056692
1996-01-01	0.754456503741396
1997-01-01	0.785417826897030
1998-01-01	0.819242651413570
1999-01-01	0.792846839107151
2000-01-01	0.769178056080405
2001-01-01	0.781755406947347
2002-01-01	0.803640015583478
2003-01-01	0.806998269668238
2004-01-01	0.817086661535749
2005-01-01	0.843499065562275
2006-01-01	0.846415631336830
2007-01-01	0.866607674685699
2008-01-01	0.975366922882504
2009-01-01	1.061698528281160
2010-01-01	1.000000000000000