Year Percent 1996-01-01 0.8036140000000000 1997-01-01 0.8036140000000000 1998-01-01 0.8036140000000000 1999-01-01 0.8036140000000000 2000-01-01 0.8036140000000000 2001-01-01 -4.4554500000000000 2002-01-01 1.2651600000000000 2003-01-01 2.1202799999999997 2004-01-01 3.4409699999999996 2005-01-01 2.7864100000000000 2006-01-01 2.8243800000000000 2007-01-01 2.9615099999999996 2008-01-01 1.7013099999999999 2009-01-01 2.5584500000000000 2010-01-01 2.3616300000000000 2011-01-01 1.5971899999999999 2012-01-01 1.8538500000000000 2013-01-01 1.4884200000000000 2014-01-01 1.3407400000000000 2015-01-01 1.1042700000000000 2016-01-01 1.3974700000000000