2008-12-20   2.330
2009-01-10   2.370
2009-08-02   2.380
2009-09-13   2.330
2009-10-08   2.310
2009-11-07   2.330
2009-11-21   2.350
2009-12-06   2.420
2010-09-30   2.350
2010-12-08   2.370
2011-11-16   2.380
2012-01-15   2.310
2012-08-26   2.300
2012-11-18   2.430
2013-01-03   2.370
2013-01-05   2.410