Year Percent 1995-01-01 0.01599100000000000 1996-01-01 0.29737399999999997 1997-01-01 0.02064400000000000 1998-01-01 0.12306300000000000 1999-01-01 0.07424299999999999 2000-01-01 0.07854100000000000 2001-01-01 0.14689600000000000 2002-01-01 0.11105400000000000 2003-01-01 0.07633500000000000 2004-01-01 0.10758300000000000 2005-01-01 0.11439100000000000 2006-01-01 0.08264500000000001 2007-01-01 0.11841500000000000 2008-01-01 0.13453400000000000 2009-01-01 0.13938299999999998 2010-01-01 1.09618000000000000 2011-01-01 1.20891000000000000 2012-01-01 0.99811000000000000 2013-01-01 0.85994100000000000 2014-01-01 0.80772800000000000 2015-01-01 0.84993100000000000 2016-01-01 0.86777900000000010 2017-01-01 0.83511900000000010