Year Percent 1993-01-01 410.240987767406000 1994-01-01 72.254680565105900 1995-01-01 39.647594078604300 1996-01-01 24.625181482993200 1997-01-01 8.881041523959660 1998-01-01 5.067573067104330 1999-01-01 0.727521658696070 2000-01-01 0.981661536457063 2001-01-01 1.367110412228640 2002-01-01 0.281472958210649 2003-01-01 -1.134311538530210 2004-01-01 1.164131522935110 2005-01-01 2.658471095729640 2006-01-01 3.739138618235540 2007-01-01 5.737162107785810 2008-01-01 10.925876468280700 2009-01-01 4.453060068268030 2010-01-01 1.319184444598100 2011-01-01 4.130300688383440 2012-01-01 3.089983269356320 2013-01-01 1.047466620793000 2014-01-01 0.103789914462827 2015-01-01 -0.884108434651286 2016-01-01 0.905521553717304 2017-01-01 3.722971711978150