2008-12-20 6.355 2009-01-10 6.427 2009-08-02 6.350 2009-09-13 6.405 2009-10-08 6.368 2009-11-07 6.325 2009-11-21 6.378 2009-12-06 6.443 2010-09-30 6.314 2010-12-08 6.411 2011-11-16 6.471 2012-01-15 6.443 2012-08-26 6.347 2012-11-18 6.472 2013-01-03 6.420 2013-01-05 6.440