2009-01-10   8.243
2009-10-09   8.282
2009-11-07   8.321
2009-12-06   7.761
2010-02-11   8.793
2010-09-30   8.814
2010-12-08   8.371
2011-08-05   8.058
2012-01-15   8.566
2013-01-03   8.293
2013-01-05   8.276
2014-04-21   9.135
2014-08-22   8.581
2015-01-02   8.115
2016-09-25   8.441
2017-02-13   7.792