Year Index 2010=1 1988-01-01 0.781441862749513 1989-01-01 0.781533893521961 1990-01-01 0.825011131451915 1991-01-01 0.833448558631686 1992-01-01 0.835496877593780 1993-01-01 0.856182569204628 1994-01-01 0.803318214127345 1995-01-01 0.813809407581660 1996-01-01 0.851015586180407 1997-01-01 0.820497833998725 1998-01-01 0.852037415867634 1999-01-01 0.848635646045671 2000-01-01 0.833250256422659 2001-01-01 0.869594537020615 2002-01-01 0.892180248938069 2003-01-01 0.912682323474120 2004-01-01 0.889532751143870 2005-01-01 0.915054966276070 2006-01-01 0.933961479165326 2007-01-01 0.998150700610387 2008-01-01 1.020739862829270 2009-01-01 1.059368554022670 2010-01-01 1.000000000000000