Year Percent 1993-01-01 255.85600000000000 1994-01-01 282.56700000000000 1995-01-01 215.27300000000000 1996-01-01 107.05500000000000 1997-01-01 103.97500000000000 1998-01-01 118.34700000000001 1999-01-01 105.14600000000000 2000-01-01 97.19870000000000 2001-01-01 113.14100000000000 2002-01-01 123.39700000000000 2003-01-01 132.05800000000000 2004-01-01 137.08800000000000 2005-01-01 153.00400000000000 2006-01-01 161.91500000000000 2007-01-01 179.39800000000000 2008-01-01 185.29600000000000 2009-01-01 157.66899999999998 2010-01-01 135.44799999999998 2011-01-01 126.95500000000000 2012-01-01 129.23100000000000 2013-01-01 129.40600000000000 2014-01-01 123.47300000000000 2015-01-01 103.49600000000001 2016-01-01 85.72020000000000