Year Percent 1996-01-01 0.9444730000000000 1997-01-01 0.9642370000000001 1998-01-01 1.0413200000000000 1999-01-01 0.7591060000000001 2000-01-01 0.8458200000000001 2001-01-01 0.8969299999999999 2002-01-01 0.7265590000000001 2003-01-01 0.7973830000000000 2004-01-01 1.0361600000000000 2005-01-01 1.6181900000000000 2006-01-01 1.7062700000000002 2007-01-01 1.7394300000000000 2008-01-01 1.6476000000000000 2009-01-01 1.1924900000000000 2010-01-01 0.9817910000000000 2011-01-01 1.2168000000000000 2012-01-01 1.1047100000000000 2013-01-01 1.4440200000000000 2014-01-01 1.1603200000000000 2015-01-01 1.1154500000000000 2016-01-01 1.0665600000000000