2008-12-20   6.451
2009-01-10   6.533
2009-08-02   6.507
2009-09-13   6.529
2009-10-08   6.439
2009-11-07   6.447
2009-11-21   6.451
2009-12-06   6.573
2010-02-10   6.529
2010-09-30   6.459
2010-12-08   6.570
2011-11-16   6.460
2012-01-15   6.408
2012-08-26   6.410
2012-11-18   6.461
2013-01-03   6.395
2013-01-05   6.410