Year Percent 2004-01-01 0.058105700 2005-01-01 0.005600800 2006-01-01 0.110173501 2007-01-01 0.120708600 2008-01-01 0.889571190 2009-01-01 0.824012220 2010-01-01 1.324030042 2011-01-01 1.777730942 2012-01-01 0.716407001