Year Index 2010=1 1990-01-01 0.716945221529794 1991-01-01 0.713248775954748 1992-01-01 0.711752064336795 1993-01-01 0.703924316196020 1994-01-01 0.719854235326695 1995-01-01 0.729341055216512 1996-01-01 0.761097116052328 1997-01-01 0.775634926021608 1998-01-01 0.780181001044778 1999-01-01 0.751960935920084 2000-01-01 0.730801953255722 2001-01-01 0.743893044792368 2002-01-01 0.758984309863814 2003-01-01 0.787775224920585 2004-01-01 0.807509965450102 2005-01-01 0.842194392740044 2006-01-01 0.878898099773962 2007-01-01 0.873690360481882 2008-01-01 0.917845075203368 2009-01-01 0.964441459218325 2010-01-01 1.000000000000000