Year Index 2005=1 2002-01-01 0.704743912873567 2003-01-01 0.759950606848376 2004-01-01 0.845341786775707 2005-01-01 1.000000000000000 2006-01-01 1.063699314432460 2007-01-01 1.118031492861820 2008-01-01 1.306368862053090