Year Percent 2002-01-01 0.032815000000000000 2003-01-01 0.295125000000000000 2004-01-01 0.273354000000000000 2005-01-01 0.249709000000000010 2006-01-01 0.233832999999999990 2007-01-01 0.228280999999999980 2008-01-01 0.412064999999999960 2009-01-01 0.428131000000000040 2010-01-01 0.007136000000000000 2011-01-01 0.103500000000000000 2012-01-01 0.096937000000000000 2013-01-01 0.063446000000000000 2014-01-01 0.042296000000000000 2015-01-01 0.044839000000000000 2016-01-01 0.043111000000000003