The fluctuations observed during the day:

===============================================================================
                                  Current Session                     Prior Day
           Open    High     Low    Last    Time     Set     Chg     Vol     Set
===============================================================================
Dec'12   70.28    70.54   69.66   70.35   14:30   70.35      0.14  18986  70.21
                                         November 02
Mar'13   71.51    71.78   70.78   71.44   14:30   71.44      -0.06  8843  71.50
                                         November 02
May'13   72.92    72.92   72.05   72.70   14:30   72.70      -0.04  1002  72.74
                                         November 02
===============================================================================