Year Percent 1991-01-01 2.417370000000000000 1992-01-01 2.417370000000000000 1993-01-01 1.545400000000000000 1994-01-01 1.577840000000000000 1995-01-01 1.415370000000000000 1996-01-01 -0.820835000000000000 1997-01-01 -0.761257000000000000 1998-01-01 0.168134999999999980 1999-01-01 0.298960000000000000 2000-01-01 0.467126000000000040 2001-01-01 -0.876976000000000000 2002-01-01 -0.876976000000000000 2003-01-01 -0.234398999999999970 2004-01-01 1.372200000000000000 2005-01-01 0.222939000000000000 2006-01-01 1.675700000000000000 2007-01-01 -0.015731000000000002 2008-01-01 -0.137976000000000000 2009-01-01 1.075089999999999900 2010-01-01 -0.362809999999999970 2011-01-01 -0.872980999999999900 2012-01-01 -0.126703999999999980 2013-01-01 2.234950000000000000 2014-01-01 1.128329999999999800 2015-01-01 -0.468754000000000000 2016-01-01 -0.419658000000000000