Year Percent Change 1996-01-01 5.86434189121849 1997-01-01 6.74669464041661 1998-01-01 9.34691839894264 1999-01-01 8.65303935939010 2000-01-01 8.55829603934408 2001-01-01 6.38309232463446 2002-01-01 7.27984837444096 2003-01-01 6.91084176652444 2004-01-01 7.84176303983483 2005-01-01 3.26305035362223 2006-01-01 -1.13601245027546 2007-01-01 2.34157518247328 2008-01-01 12.76670596339680 2009-01-01 12.05274778412310 2010-01-01 10.33688245550450