Year Percent 1996-01-01 13.2459999999999990 1997-01-01 13.2459999999999990 1998-01-01 13.2459999999999990 1999-01-01 13.2459999999999990 2000-01-01 13.2459999999999990 2001-01-01 13.2459999999999990 2002-01-01 13.2459999999999990 2003-01-01 2.9744500000000000 2004-01-01 2.9744500000000000 2005-01-01 2.9744500000000000 2006-01-01 2.4473500000000000 2007-01-01 2.4473500000000000 2008-01-01 2.4473500000000000 2009-01-01 8.7936000000000000 2010-01-01 3.3455300000000000 2011-01-01 2.6821599999999997 2012-01-01 3.3559300000000003 2013-01-01 1.5030600000000000 2014-01-01 0.2429390000000000 2015-01-01 -0.9657350000000000 2016-01-01 -1.5421300000000000