07/27/2008 00:00:00   -16.02  -18.72   24.64   220.6    29.6
07/27/2008 00:30:00   -19.49  -14.71   24.42   233.0    29.5
07/27/2008 01:00:00   -21.60  -14.63   26.09   235.9    29.4
07/27/2008 01:30:00   -11.12   -6.48   12.87   239.8    29.4
07/27/2008 02:00:00   -28.03  -13.54   31.13   244.2    29.4
07/27/2008 02:30:00   -26.83  -12.77   29.71   244.5    29.4
07/27/2008 03:00:00   -27.73   -8.77   29.08   252.4    29.4
07/27/2008 03:30:00   -27.85   -3.19   28.03   263.5    29.3
07/27/2008 04:00:00   -28.38    1.53   28.42   273.1    29.3
07/27/2008 04:30:00   -25.80    0.60   25.81   271.3    29.2
07/27/2008 05:00:00   -27.01    3.69   27.26   277.8    29.2
07/27/2008 05:30:00   -26.00    5.62   26.60   282.2    29.2
07/27/2008 06:00:00   -24.39    5.57   25.02   282.9    29.2
07/27/2008 06:30:00   -21.81    5.49   22.49   284.1    29.1
07/27/2008 07:00:00   -19.29    6.05   20.22   287.4    29.0