Year Percent 1990-01-01 0.16173099999999999 1991-01-01 0.16173099999999999 1992-01-01 0.16173099999999999 1993-01-01 0.16173099999999999 1994-01-01 0.16173099999999999 1995-01-01 0.03802600000000000 1996-01-01 0.03802600000000000 1997-01-01 0.03802600000000000 1998-01-01 -0.18236000000000000 1999-01-01 -0.18236000000000000 2000-01-01 -0.18236000000000000 2001-01-01 -0.18236000000000000 2002-01-01 -0.18236000000000000 2003-01-01 -0.18236000000000000 2004-01-01 0.74412600000000010 2005-01-01 1.52754000000000000 2006-01-01 5.54754000000000100 2007-01-01 2.54114000000000000 2008-01-01 -1.19122000000000020 2009-01-01 0.51351400000000000 2010-01-01 1.72140000000000000 2011-01-01 1.88852999999999980 2012-01-01 1.43776000000000000 2013-01-01 0.42261400000000005 2014-01-01 -0.08730200000000000 2015-01-01 -0.43246400000000000 2016-01-01 1.27257000000000000