2008-04-29   9.010
2008-06-13   9.320
2009-11-07   7.810
2010-04-01   8.910
2010-06-01   7.790
2010-09-30   8.640
2011-03-26   8.660
2011-10-09   7.890
2012-09-21   8.420
2014-03-20   8.560
2014-05-28   8.690
2014-07-22   8.700
2014-09-22   9.340
2015-06-25   8.950
2015-07-25   8.160
2015-08-24   8.780
2016-07-23   8.360