       1.5        1.9        2.7        3.7        5.2        7.2         10         14         19         27         37         50         72        100        140        190        270        370        500  !AB/2, m
      86.6      110.5      165.4      199.6      244.9      279.7      322.5      368.6      414.7      472.5      487.7      474.8      396.9      282.7      169.6      81.38      61.68      42.16      31.08  ! App.resistivity
