Year Number 2005-01-01 0.776043863 2006-01-01 4.896026555 2007-01-01 4.373455029 2008-01-01 3.284582074 2009-01-01 -0.314416144 2010-01-01 -0.329981704 2011-01-01 2.539609113 2012-01-01 14.346384530 2013-01-01 30.427535000 2014-01-01 27.801020340