IM-Rate data for Christchurch subsoil class D Sa(2p0s)
    9            (2G10.3)      1.00
  0.059848  0.032189
  0.093408  0.013863
  0.147565  0.004463
  0.190436  0.002107
  0.237428  0.001026
  0.310989  0.000404
  0.373848  0.000201
  0.445666  0.000100
  0.554788  0.000040