Year Percent 2000-01-01 0.6845970000000000 2001-01-01 1.0744799999999999 2002-01-01 0.4495710000000000 2003-01-01 0.7055800000000000 2004-01-01 0.4108460000000000 2005-01-01 0.4897960000000000 2006-01-01 0.5891020000000000 2007-01-01 1.2526100000000000 2008-01-01 1.0979000000000000 2009-01-01 0.5767520000000000 2010-01-01 0.9525620000000001 2011-01-01 1.4303400000000000 2012-01-01 1.3875000000000000 2013-01-01 1.4167299999999998 2014-01-01 1.0584900000000000 2015-01-01 1.3659200000000000 2016-01-01 1.5014500000000000