2008-08-21   7.680
2008-10-16   7.400
2008-12-10   8.150
2009-01-25   8.480
2009-11-06   8.240
2009-11-20   8.260
2010-12-14   8.410
2011-05-31   7.230
2014-08-22   7.950
2014-12-29   8.120