2008-08-21   9.040
2008-10-16   8.590
2008-12-09   8.860
2008-12-10   8.500
2009-01-25   9.440
2009-11-06   8.680
2009-11-20   9.220
2010-03-31   8.770
2010-12-14   8.930
2011-11-17   8.540
2011-12-01   8.660
2012-01-12   7.810
2012-01-13   7.940
2012-04-18   7.750
2012-11-20   9.130
2013-01-29   8.340
2013-03-14   8.140
2013-11-14   7.280
2013-11-28   7.700
2014-03-16   13.010
2014-12-30   8.400
2014-12-31   8.430
2015-01-11   8.700
2015-12-01   8.780
2016-02-10   8.200
2017-02-10   6.990