Year Percent 2003-01-01 0.169248000000000000 2004-01-01 0.148536000000000000 2005-01-01 0.379752000000000000 2006-01-01 0.225206000000000000 2007-01-01 0.207725000000000000 2008-01-01 0.064201000000000000 2009-01-01 0.074286000000000000 2010-01-01 0.068937000000000000 2011-01-01 0.049132999999999996 2012-01-01 0.073388000000000000 2013-01-01 0.093464000000000000 2014-01-01 0.084552000000000000 2015-01-01 0.049918000000000004 2016-01-01 0.044831000000000000