The fluctuations observed during the day:

===============================================================================
                                  Current Session                     Prior Day
           Open    High     Low    Last    Time     Set     Chg     Vol     Set
===============================================================================
Dec'12   70.63    71.28   70.41   70.81   14:45   70.81     -0.07  27224  70.88
                                         November 13
Mar'13   71.20    71.20   70.53   70.61   14:45   70.61     -0.59  28435  71.20
                                         November 13
May'13   72.22    72.22   71.58   71.65   14:45   71.65     -0.75  2714   72.40
                                         November 13
===============================================================================