Year Percent 1995-01-01 0.8505640000000000 1996-01-01 1.5477600000000000 1997-01-01 4.4647700000000000 1998-01-01 5.7023300000000000 1999-01-01 5.9817200000000000 2000-01-01 1.7906700000000000 2001-01-01 1.7527800000000000 2002-01-01 1.6494400000000002 2003-01-01 0.9390490000000000 2004-01-01 0.7183910000000000 2005-01-01 3.6190200000000000 2006-01-01 4.6917100000000000 2007-01-01 8.6669399999999990 2008-01-01 7.4394800000000005 2009-01-01 5.7433000000000000 2010-01-01 5.2217900000000000 2011-01-01 4.4826300000000000 2012-01-01 4.4127800000000010 2013-01-01 1.5323799999999999 2014-01-01 4.3712700000000000 2015-01-01 7.2617899999999995 2016-01-01 8.0097600000000000