Year Percent 2000-01-01 10.3000000000000000 2001-01-01 6.3000000000000000 2002-01-01 3.5985300000000002 2003-01-01 2.9164000000000000 2004-01-01 2.7719700000000000 2005-01-01 3.8074900000000000 2006-01-01 1.9707800000000000 2007-01-01 2.2051800000000000 2008-01-01 0.0000000000000000 2009-01-01 0.9587600000000001 2010-01-01 0.7596700000000000 2011-01-01 2.2054900000000000 2012-01-01 0.7519500000000000 2013-01-01 5.3806699999999990 2014-01-01 0.0000000000000000