2008-12-08   21.020
2008-12-09   21.160
2008-12-10   21.180
2009-01-24   21.080
2009-05-20   20.910
2010-04-01   21.960
2010-06-11   21.600
2010-12-14   21.050
2012-04-05   21.650
2013-03-14   21.590
2013-11-14   21.820
2014-04-22   21.150
2014-04-23   21.180
2015-04-05   21.930
2015-04-15   21.990
2016-03-17   21.080
2017-02-10   21.520