2008-04-29   5.940
2008-06-13   6.130
2009-11-07   5.500
2010-04-01   6.170
2010-06-01   5.950
2010-09-30   5.830
2011-03-26   5.970
2011-10-09   5.910
2012-09-21   6.080
2014-03-20   5.710
2014-05-28   6.120
2014-07-22   5.710
2014-09-22   5.210
2015-06-25   6.070
2015-07-25   6.090
2015-08-24   6.010