Year Percent 1995-01-01 11.625800000000000 1996-01-01 14.175999999999998 1997-01-01 14.979800000000000 1998-01-01 18.946400000000000 1999-01-01 22.943600000000000 2000-01-01 14.783500000000000 2001-01-01 14.956900000000000 2002-01-01 17.155100000000000 2003-01-01 19.677300000000000 2004-01-01 21.021600000000000 2005-01-01 21.330700000000000 2006-01-01 15.480400000000000 2007-01-01 125.637999999999990 2008-01-01 12.125100000000000 2009-01-01 15.546200000000000 2010-01-01 9.624910000000000 2011-01-01 9.337470000000000 2012-01-01 8.737390000000000 2013-01-01 7.115150000000000 2014-01-01 3.513290000000000 2015-01-01 6.091860000000000 2016-01-01 8.779270000000000