2008-04-29   1,271.870
2008-12-20   1,092.940
2009-01-09   1,177.430
2009-07-11   1,086.040
2009-10-09   736.060
2009-11-07   886.970
2009-12-06   1,275.560
2010-02-11   1,169.480
2011-11-03   961.090
2012-01-15   1,037.000