Year Percent 2003-01-01 98.74642944 2004-01-01 99.97293854 2005-01-01 99.97447205 2006-01-01 99.12004852 2007-01-01 99.78059387 2008-01-01 89.76471710 2009-01-01 98.72135925 2010-01-01 82.83682251 2011-01-01 90.57132721 2012-01-01 97.36301422 2013-01-01 97.98033142