2008-03-31   12.130
2008-04-29   11.060
2009-11-06   9.770
2010-02-11   9.870
2010-04-01   11.150
2010-05-31   11.060
2010-12-08   9.960
2012-01-16   8.530
2012-04-20   10.930
2013-01-03   9.890
2013-03-13   10.200
2013-06-16   11.700
2015-01-14   11.410
2015-11-30   10.510
2017-02-10   10.060