Year Percent 1986-01-01 4.1581108829568100 1987-01-01 0.4435682602268770 1988-01-01 1.0304219823354900 1989-01-01 -1.7969888295288900 1990-01-01 2.8890537421694700 1991-01-01 -1.6783496895653400 1992-01-01 -3.9354681007088200 1993-01-01 4.9236641221374400 1994-01-01 42.4396750333452000 1995-01-01 9.4180074345222900 1996-01-01 10.0311203319503000 1999-01-01 4.1426713728404900 2000-01-01 -0.8819915170254290 2001-01-01 0.0559899218140598 2002-01-01 4.3787597178087200 2003-01-01 -0.6318449873631560 2004-01-01 2.4297660796179800 2005-01-01 3.0944901145618200 2006-01-01 6.5378439529960300 2007-01-01 2.6564132426738700 2008-01-01 7.3342453868999400 2009-01-01 7.4544530739638300 2010-01-01 0.4255606592812850 2011-01-01 0.7600726441111050 2012-01-01 6.0947930574098900 2013-01-01 6.0089347511483000 2014-01-01 0.0771604938271761 2015-01-01 4.5140360659216600