Year Percent 2000-01-01 0.0086750000000000000 2001-01-01 0.0083090000000000000 2002-01-01 0.0085140000000000000 2003-01-01 0.0069640000000000000 2004-01-01 0.0037329999999999998 2005-01-01 0.0037329999999999998 2006-01-01 0.0075860000000000000 2007-01-01 0.0007260000000000000 2008-01-01 0.0006640000000000000 2009-01-01 0.0010000000000000000 2010-01-01 0.0010000000000000000 2011-01-01 0.0008420000000000000 2012-01-01 0.0056799999999999990 2013-01-01 0.0072370000000000000