2008-08-21 9.630 2008-10-16 8.720 2008-12-09 9.170 2008-12-10 9.240 2009-01-25 9.980 2009-11-06 8.760 2009-11-20 9.820 2010-03-31 9.120 2010-12-14 9.310 2011-11-17 8.810 2011-12-01 9.020 2012-01-12 8.020 2012-01-13 8.350 2012-04-18 8.360 2012-11-20 9.480 2013-01-29 9.230 2013-03-14 8.690 2013-11-14 8.590 2013-11-28 9.170 2014-03-16 11.960 2014-12-30 8.490 2014-12-31 8.600 2015-01-11 8.120 2015-12-01 8.030 2016-02-10 8.010 2017-02-10 6.940