Year Percent 1996-01-01 1.7499000000000000 1997-01-01 1.3422800000000000 1998-01-01 0.0000000000000000 1999-01-01 0.4439540000000000 2000-01-01 0.5111580000000000 2001-01-01 0.9302330000000000 2002-01-01 0.6276050000000000 2003-01-01 0.8657959999999999 2004-01-01 0.9670860000000001 2005-01-01 1.8365500000000000 2006-01-01 1.9460300000000000 2007-01-01 1.9561200000000000 2008-01-01 1.7921300000000000 2009-01-01 1.4269100000000001 2010-01-01 1.4437700000000000 2011-01-01 1.4936100000000000 2012-01-01 1.4412600000000000 2013-01-01 1.3569900000000000 2014-01-01 1.3802600000000000 2015-01-01 0.8496490000000000 2016-01-01 -0.9832629999999999