Year Percent 1996-01-01 0.5288410000000000 1997-01-01 0.7047530000000000 1998-01-01 0.5610030000000000 1999-01-01 0.6650140000000000 2000-01-01 0.6459380000000000 2001-01-01 0.3071420000000000 2002-01-01 0.0755840000000000 2003-01-01 0.4815370000000000 2004-01-01 0.7735250000000000 2005-01-01 0.8482559999999999 2006-01-01 1.1150400000000000 2007-01-01 1.1000100000000000 2008-01-01 0.0605270000000000 2009-01-01 0.5846740000000000 2010-01-01 0.7055840000000000 2011-01-01 0.6561830000000000 2012-01-01 0.5545720000000001 2013-01-01 0.6435240000000000 2014-01-01 0.4928920000000000 2015-01-01 0.6264529999999999 2016-01-01 0.6289399999999999