A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.412532  7.057903  0.0  0.0  # for region 1
  5.654138  4.425804  0.0  0.0  # for region 2
  3.882249  3.454497  0.0  0.0  # for region 3
  3.380433  3.059384  0.0  0.0  # for region 4
  2.544074  2.316547  0.0  0.0  # for region 5
  2.316233  2.133583  0.0  0.0  # for region 6
  2.13327  1.726231  0.0  0.0  # for region 7
  1.725917  0.526142  0.0  0.0  # for region 8