Year Percent 2000-01-01 10.375 2001-01-01 9.975 2002-01-01 9.825 2003-01-01 9.875 2004-01-01 9.850 2005-01-01 10.700 2006-01-01 8.600 2007-01-01 6.650 2008-01-01 6.600 2009-01-01 7.850 2010-01-01 7.500 2011-01-01 7.675 2012-01-01 6.925 2013-01-01 7.525 2014-01-01 6.600 2015-01-01 8.575 2016-01-01 9.275 2017-01-01 9.000