Year Percent Change 1996-01-01 19.107288059012200 1997-01-01 10.666593629373300 1998-01-01 9.065850761714580 1999-01-01 2.273098738207270 2000-01-01 -0.964968643752142 2001-01-01 -4.276741166041270 2002-01-01 -5.995135622740450 2003-01-01 -8.285209837337390 2004-01-01 -5.025371862490930 2005-01-01 -0.281448362673236 2006-01-01 -6.152663520897480 2007-01-01 -1.727695008249250 2008-01-01 2.321002760598790 2009-01-01 -8.012314882303840 2010-01-01 -5.031057418262880