IM-Rate data for Wellington Sa(1p0s)
    9            (2G10.3)      1.00
  0.065585  0.032189
  0.130563  0.013863
  0.317974  0.004463
  0.570516  0.002107
  0.887429  0.001026
  1.355827  0.000404
  1.745031  0.000201
  2.166457  0.000100
  2.784826  0.000040