Year Percent 1990-01-01 0.43115699999999996 1991-01-01 0.47972700000000007 1992-01-01 0.56759200000000000 1993-01-01 0.68622200000000000 1994-01-01 0.67941600000000000 1995-01-01 0.65573100000000010 1996-01-01 0.65675600000000000 1997-01-01 0.72222000000000000 1998-01-01 0.55931000000000010 1999-01-01 0.64414200000000000 2000-01-01 0.73399700000000000 2001-01-01 0.71672400000000000 2002-01-01 0.70696500000000000 2003-01-01 0.73055800000000000 2004-01-01 0.81606000000000000 2005-01-01 0.80568000000000010 2006-01-01 0.90266200000000010 2007-01-01 0.92642900000000010 2008-01-01 0.88820300000000010 2009-01-01 0.87610400000000010 2010-01-01 0.81622299999999990 2011-01-01 0.81700900000000000 2012-01-01 0.86442299999999990 2013-01-01 0.91822300000000000 2014-01-01 0.87031600000000000 2015-01-01 0.91560300000000010 2016-01-01 1.15519000000000000