"IEC 1/1-Oct Mag - dB volts (re:1.81E-006)"
      "Hz"      "Data"
        16,   38.72711
      31.5,   43.15012
        63,   38.01986
       125,   41.76194
       250,   42.53493
       500,   41.73862
      1000,   37.80449
      2000,   37.37888
      4000,   37.39566
      8000,   30.63808
     16000,   24.21389