Year Percent 2000-01-01 1.20 2001-01-01 1.00 2002-01-01 1.00 2003-01-01 0.90 2004-01-01 0.86 2005-01-01 0.92 2006-01-01 0.97 2007-01-01 1.00 2008-01-01 0.91 2009-01-01 0.81 2010-01-01 0.84 2011-01-01 0.59 2012-01-01 0.20 2013-01-01 0.19 2014-01-01 0.19