Year Percent 1996-01-01 1.9830599999999998 1997-01-01 1.7475700000000000 1998-01-01 1.3541800000000000 1999-01-01 -0.4174620000000000 2000-01-01 -0.4174620000000000 2001-01-01 9.9077100000000000 2002-01-01 2.9762900000000000 2003-01-01 1.6362400000000000 2004-01-01 8.3159800000000000 2005-01-01 1.5883100000000000 2006-01-01 2.3826000000000000 2007-01-01 3.7608500000000000 2008-01-01 2.4635599999999998 2009-01-01 2.2234300000000000 2010-01-01 1.8279599999999998 2011-01-01 1.2360400000000000 2012-01-01 2.2303500000000000 2013-01-01 2.0768200000000000 2014-01-01 2.0579600000000000 2015-01-01 1.8429099999999998 2016-01-01 0.6388600000000000