2008-12-20   6.415
2009-01-10   6.408
2009-08-02   6.409
2009-09-13   6.427
2009-10-08   6.389
2009-11-07   6.369
2009-11-21   6.404
2009-12-06   6.410
2010-02-10   6.431
2010-09-30   6.412
2010-12-08   6.416
2011-11-16   6.470
2012-01-15   6.447
2012-08-26   6.427
2012-11-18   6.424
2013-01-03   6.428
2013-01-05   6.412