2008-06-12   6.210
2008-07-30   6.240
2008-10-16   5.770
2009-05-06   5.930
2010-06-12   6.050
2011-04-06   5.920
2012-06-14   6.110
2013-07-19   6.130
2014-03-20   6.070
2014-07-22   6.080
2014-09-23   6.220
2015-05-25   6.360
2015-06-26   6.090
2015-07-24   6.180
2015-08-22   6.060
2015-11-27   5.960
2016-03-19   6.150
2016-09-24   6.010