2008-12-10   31.860
2009-01-27   31.610
2009-11-06   31.640
2010-03-31   31.420
2010-12-14   32.040
2011-05-31   30.780
2011-11-17   31.450
2012-01-12   32.320
2013-01-29   33.210
2013-02-23   33.030
2013-03-14   33.890
2013-11-28   33.100
2014-03-17   33.000
2014-04-21   32.710
2014-08-22   32.830
2014-09-23   32.090
2014-10-24   33.550
2014-12-30   32.160
2014-12-31   31.790
2015-01-11   32.670
2015-04-04   32.910
2015-04-14   32.930
2015-05-25   30.980
2015-12-01   32.110
2016-02-10   33.410
2016-09-24   30.310
2016-12-24   32.690
2017-02-15   32.220