2009-01-11   8.123
2009-10-08   7.967
2009-11-07   7.802
2010-02-10   8.456
2010-09-29   7.709
2011-05-18   7.735
2011-08-04   8.102
2012-01-15   8.303
2012-08-26   8.308
2012-09-21   8.356
2012-11-18   8.204
2013-01-03   8.100
2013-01-05   8.163
2013-11-14   8.013
2014-03-16   7.088
2014-04-21   8.006
2014-08-22   8.138
2015-01-02   7.962
2015-11-30   8.039
2016-02-10   8.121
2016-09-25   8.066
2017-02-10   8.047