07/23/2008 03:30:00   -30.15   39.96   50.06   323.0    26.9
07/23/2008 04:00:00   -35.66   35.52   50.33   314.9    26.8
07/23/2008 04:30:00   -38.10   41.29   56.18   317.3    26.8
07/23/2008 05:00:00   -34.50   31.83   46.94   312.7    26.7
07/23/2008 05:30:00   -37.55   36.64   52.46   314.3    26.6
07/23/2008 06:00:00   -33.69   23.66   41.17   305.1    26.6
07/23/2008 06:30:00   -34.74   33.13   48.00   313.6    26.6
07/23/2008 07:00:00   -34.61   39.37   52.42   318.7    26.6
07/23/2008 07:30:00   -37.67   36.16   52.22   313.8    26.7
07/23/2008 08:00:00   -41.37   38.56   56.55   313.0    26.7