2008-12-09   23.830
2008-12-10   24.580
2009-01-24   24.470
2009-05-20   25.500
2010-04-01   24.350
2010-06-11   23.410
2010-12-14   23.930
2012-04-05   21.310
2013-03-14   23.540
2013-11-14   22.710
2014-04-11   28.370
2014-04-12   29.130
2014-04-22   28.420
2014-04-23   25.320
2015-04-05   23.710
2015-04-15   22.520
2016-03-17   20.870
2017-02-10   19.230