Year Percent 2000-01-01 9.01721 2001-01-01 10.21010 2002-01-01 14.20190 2003-01-01 15.60600 2004-01-01 16.04650 2005-01-01 16.38780 2006-01-01 22.35880 2007-01-01 21.44230 2008-01-01 23.52340 2009-01-01 26.42000