Year Index 1997-01-01 0.002825000000000000 1998-01-01 -0.046070000000000000 1999-01-01 0.027097000000000003 2000-01-01 0.062278999999999994 2001-01-01 0.106281000000000000 2002-01-01 0.563125000000000000 2003-01-01 0.503337000000000000 2004-01-01 0.339035000000000000 2005-01-01 0.393586000000000000 2006-01-01 0.276773000000000000 2007-01-01 0.226698000000000000 2008-01-01 0.221662000000000000 2009-01-01 0.180140000000000020 2010-01-01 0.114594000000000000