2008-06-12   5.690
2008-07-30   5.390
2009-05-06   5.350
2010-06-12   5.410
2011-03-27   5.460
2012-06-13   5.330
2013-07-19   5.230
2014-07-21   5.330
2014-09-23   5.180
2015-05-25   5.280
2015-08-22   5.280