2008-06-12   9.020
2008-07-30   8.040
2009-05-06   9.140
2010-06-12   8.500
2011-03-27   6.240
2012-06-13   5.850
2013-07-19   7.690
2014-07-21   8.720
2014-09-23   8.390
2015-05-25   7.940
2015-08-22   7.450