2008-12-20   5.901
2009-01-10   6.434
2009-07-11   5.804
2009-08-02   6.126
2009-09-13   6.018
2009-10-08   5.885
2009-11-07   6.083
2009-11-21   5.964
2009-12-06   6.511
2010-02-10   6.516
2010-09-30   5.830
2010-12-08   6.001
2011-11-16   6.024
2012-01-15   5.966
2012-08-26   6.230
2012-11-18   6.474
2013-01-03   6.251
2013-01-05   6.182