Year Percent 1994-01-01 0.46579499999999996 1995-01-01 0.45597100000000000 1996-01-01 0.54970500000000000 1997-01-01 0.66343900000000000 1998-01-01 0.75344000000000000 1999-01-01 0.88581800000000000 2000-01-01 0.93953700000000010 2001-01-01 0.98805400000000010 2002-01-01 0.98871500000000000 2003-01-01 1.06621000000000000 2004-01-01 1.11863000000000000 2005-01-01 1.29150000000000000 2006-01-01 1.69699000000000020 2007-01-01 1.86930999999999980 2008-01-01 2.71052000000000030 2009-01-01 1.88545000000000000 2010-01-01 1.87374000000000020 2011-01-01 1.74724000000000010 2012-01-01 1.94280000000000000 2013-01-01 1.59407000000000000 2014-01-01 1.36367000000000020 2015-01-01 1.22853000000000000 2016-01-01 0.99344700000000000