2008-03-31   16.060
2008-04-28   17.850
2009-04-21   15.610
2009-05-06   13.270
2010-04-01   19.360
2010-09-30   20.110
2011-03-26   12.810
2013-03-13   21.570
2014-03-17   19.960
2014-05-28   20.840
2014-09-22   21.020
2015-06-25   20.120
2015-07-25   18.110
2017-02-13   16.940
2017-05-20   16.050