Year Percent 1992-01-01 13.656900000000000 1993-01-01 13.645999999999999 1994-01-01 13.645999999999999 1995-01-01 18.051400000000000 1996-01-01 17.236000000000000 1997-01-01 17.997400000000000 1998-01-01 18.855999999999998 1999-01-01 23.991100000000000 2000-01-01 30.349400000000000 2001-01-01 35.607400000000000 2002-01-01 39.474500000000000 2003-01-01 43.189300000000000 2004-01-01 50.742100000000000 2005-01-01 53.572900000000000 2006-01-01 59.161700000000000 2007-01-01 69.639600000000000 2008-01-01 78.168000000000000 2009-01-01 88.312700000000000 2010-01-01 99.997300000000000 2011-01-01 98.383000000000000 2012-01-01 91.082000000000010 2013-01-01 91.745700000000000 2014-01-01 94.831900000000000 2015-01-01 102.791000000000000 2016-01-01 113.940000000000000