Year Percent 2000-01-01 0.057460000000000004 2001-01-01 0.111031999999999990 2002-01-01 0.126934000000000000 2003-01-01 0.273256000000000000 2004-01-01 0.237942000000000010 2005-01-01 0.332130000000000040 2006-01-01 0.656488000000000000 2007-01-01 0.718372000000000000 2008-01-01 0.380139000000000000 2009-01-01 0.328639000000000000 2010-01-01 0.393146000000000000 2011-01-01 0.323961999999999970 2012-01-01 0.375886999999999970 2013-01-01 0.326241000000000000 2014-01-01 0.258071000000000000