IM-Rate data for Auckland subsoil class C Sa(2p0s)
    9            (2G10.3)      1.00
  0.025665  0.032189
  0.037251  0.013863
  0.060353  0.004463
  0.083222  0.002107
  0.113206  0.001026
  0.167317  0.000404
  0.221480  0.000201
  0.288116  0.000100
  0.396707  0.000040