Year Percent 1996-01-01 1.0227200000000000 1997-01-01 0.8178680000000000 1998-01-01 1.1525200000000000 1999-01-01 1.2077799999999999 2000-01-01 0.6283130000000000 2001-01-01 -2.6077300000000000 2002-01-01 -2.6077300000000000 2003-01-01 -2.0562600000000000 2004-01-01 0.8010040000000000 2005-01-01 0.9530580000000000 2006-01-01 1.2218100000000000 2007-01-01 2.5016599999999998 2008-01-01 1.1098200000000000 2009-01-01 -0.2333270000000000 2010-01-01 0.8726320000000000 2011-01-01 1.1656300000000000 2012-01-01 1.3416600000000000 2013-01-01 1.6619200000000000 2014-01-01 0.9297740000000000 2015-01-01 0.5593080000000000 2016-01-01 0.5729390000000001