The fluctuations observed during the day:

===============================================================================
                                  Current Session                     Prior Day
           Open    High     Low    Last    Time     Set     Chg     Vol     Set
===============================================================================
Dec'12   69.79    71.69   69.60   70.88   14:30   70.88      1.30  29689  69.58
                                         November 12
Mar'13   70.40    71.94   70.10   71.20   14:30   71.20      0.76  14817  70.44
                                         November 12
May'13   71.72    73.11   71.52   72.40   14:30   72.40      0.68  1232   71.72
                                         November 12
===============================================================================