2008-12-08   21.110
2008-12-09   21.210
2008-12-10   21.250
2009-01-24   21.030
2009-05-20   21.040
2010-04-01   22.030
2010-06-11   21.660
2010-12-14   21.000
2012-04-05   21.510
2013-03-14   21.590
2013-11-14   21.830
2014-04-22   21.170
2014-04-23   21.180
2015-04-05   21.940
2015-04-15   21.920
2016-03-17   20.980
2017-02-10   21.760