2008-12-20   4.530
2009-01-10   4.420
2009-08-02   4.140
2009-09-13   4.460
2009-10-08   4.540
2009-11-07   4.240
2009-11-21   4.370
2009-12-06   4.540
2010-09-30   4.720
2010-12-08   4.670
2011-11-16   3.930
2012-01-15   3.850
2012-08-26   4.240
2012-11-18   4.770
2013-01-03   4.830
2013-01-05   4.460