2008-12-20   5.460
2009-01-10   5.300
2009-08-02   4.700
2009-09-13   4.910
2009-10-08   5.030
2009-11-07   4.730
2009-11-21   4.930
2009-12-06   4.730
2010-02-10   4.620
2010-09-30   5.090
2010-12-08   4.600
2011-11-16   4.130
2012-01-15   4.100
2012-08-26   4.110
2012-11-18   4.570
2013-01-03   4.700
2013-01-05   4.710