Year Percent 2009-01-01 -48.86290 2010-01-01 2.98391 2011-01-01 17.71470 2012-01-01 -10.57620 2013-01-01 9.37635 2014-01-01 9.37635 2015-01-01 9.37635 2016-01-01 17.43770