2008-04-01   17.510
2008-06-12   18.450
2008-07-30   17.110
2009-05-06   21.150
2009-07-18   19.230
2010-02-17   25.060
2010-06-12   20.880
2011-03-27   18.700
2012-06-14   21.180
2013-03-14   23.020
2013-07-19   17.200
2013-09-20   21.340
2014-03-20   21.880
2014-09-22   19.820
2015-06-25   21.170
2015-07-23   20.060
2016-03-19   20.310
2016-09-24   19.690
2017-03-10   21.030