Histogram stats - Sample Cast
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     Cast 8
       Mean sigma:       26.2595       RMS: 0.0028231
       Mean theta:       19.2508       RMS: 0.014342
       Mean salinity:    36.7031       RMS: 0.0025307
       Mean Pressure:    112.8776       RMS: 3.6457
       Mean Chlorophyll: 0.36051       RMS: 0.22971