Year Percent 1993-01-01 102.72100000000000 1994-01-01 88.39800000000000 1995-01-01 70.71370000000000 1996-01-01 71.96560000000000 1997-01-01 88.71420000000000 1998-01-01 100.71400000000000 1999-01-01 99.97160000000000 2000-01-01 94.31710000000000 2001-01-01 76.72810000000000 2002-01-01 67.48510000000000 2003-01-01 63.47530000000000 2004-01-01 56.40790000000000 2005-01-01 63.97110000000000 2006-01-01 73.94390000000000 2007-01-01 75.64020000000000 2008-01-01 80.03370000000000 2009-01-01 86.20000000000000 2010-01-01 93.98100000000001 2011-01-01 99.92660000000000 2012-01-01 101.66000000000000 2013-01-01 98.82580000000000 2014-01-01 99.93799999999999 2015-01-01 101.63799999999999 2016-01-01 104.00700000000000