Year Percent 2000-01-01 9.9000 2001-01-01 9.7000 2002-01-01 10.3000 2003-01-01 7.8000 2004-01-01 7.7000 2005-01-01 7.6000 2006-01-01 8.3000 2007-01-01 8.3000 2008-01-01 9.1000 2009-01-01 9.3000 2010-01-01 10.0431 2011-01-01 9.8000 2012-01-01 9.5700 2013-01-01 9.4000 2014-01-01 9.0000 2015-01-01 8.5000