The fluctuations observed during the day:

==============================================================================
           Open    High    Low    Last    Time    Set    Chg     Vol       Set
==============================================================================
May'12    89.10    90.35  88.96    90.31  14:30  90.31    1.42     32    88.89
                                        Apr 26
Jul'12    90.70    92.34  90.70    92.11  14:30  92.11    1.31  10048    90.80
                                        Apr 26
Oct'12       -     91.70  91.70    91.70  14:30  91.70    0.41     28    91.29
                                        Apr 26
==============================================================================