Year Percent 1996-01-01 1.0123100000000000 1997-01-01 0.7342690000000000 1998-01-01 0.7960280000000000 1999-01-01 0.8660270000000000 2000-01-01 0.9428020000000000 2001-01-01 0.9292070000000000 2002-01-01 0.7199390000000000 2003-01-01 0.6299520000000001 2004-01-01 0.8753830000000000 2005-01-01 0.2770620000000000 2006-01-01 1.4433900000000000 2007-01-01 1.1971500000000000 2008-01-01 1.2000000000000000 2009-01-01 1.2441300000000000 2010-01-01 1.2336200000000002 2011-01-01 1.0652000000000000 2012-01-01 1.0425900000000000 2013-01-01 1.0006400000000000 2014-01-01 0.9965320000000000 2015-01-01 0.7927990000000000 2016-01-01 1.1968600000000000