2009-01-10   9.049
2009-10-09   8.847
2009-11-07   8.071
2009-12-06   8.368
2010-02-11   8.434
2010-09-30   8.836
2010-12-08   9.097
2011-08-05   8.299
2012-01-15   8.373
2013-01-03   7.551
2013-01-05   7.746
2014-04-21   8.547
2014-08-22   8.178
2015-01-02   8.649
2016-09-25   8.485
2017-02-13   7.794