Year Index 2010=1 1990-01-01 0.630934570792306 1991-01-01 0.667457646697742 1992-01-01 0.709299219912927 1993-01-01 0.724483450091316 1994-01-01 0.725756612847582 1995-01-01 0.733363076599225 1996-01-01 0.752986639034361 1997-01-01 0.768944783029954 1998-01-01 0.786360546854250 1999-01-01 0.806220709687756 2000-01-01 0.825673996420956 2001-01-01 0.847976235985068 2002-01-01 0.865741023998942 2003-01-01 0.882325941683707 2004-01-01 0.890224840422791 2005-01-01 0.902034273066201 2006-01-01 0.910680281422921 2007-01-01 0.930315622796032 2008-01-01 0.957987814535057 2009-01-01 0.995200884871407 2010-01-01 1.000000000018290