Year Percent 1993-01-01 111.49300000000000 1994-01-01 86.39330000000000 1995-01-01 78.90010000000000 1996-01-01 72.15880000000000 1997-01-01 80.82890000000000 1998-01-01 90.42299999999999 1999-01-01 84.70100000000001 2000-01-01 72.58340000000000 2001-01-01 61.92860000000000 2002-01-01 53.29200000000000 2003-01-01 52.72380000000000 2004-01-01 58.30480000000000 2005-01-01 61.70120000000000 2006-01-01 64.93410000000000 2007-01-01 67.86450000000000 2008-01-01 84.99020000000000 2009-01-01 90.36480000000000 2010-01-01 79.74310000000000 2011-01-01 83.94050000000000 2012-01-01 89.48299999999999 2013-01-01 98.75770000000000 2014-01-01 106.50100000000000 2015-01-01 111.51799999999999 2016-01-01 115.23000000000000