"IEC 1/1-Oct Mag - dB volts (re:1.81E-006)"
      "Hz"      "Data"
        16,   23.49427
      31.5,    36.1735
        63,   35.84298
       125,    41.6585
       250,   40.24727
       500,    36.5208
      1000,   40.93527
      2000,   45.06128
      4000,     44.899
      8000,   34.87532
     16000,   16.80119