A 1.0 #regions in PPM
# low field   high field  bias        slope
  4.1509521571225765  4.060506255381907  -0.0  -0.0  # for region 1
  3.7012107872932822  3.6566945063464558  -0.0  -0.0  # for region 2
  2.136781485447668  2.0731867983807732  -0.0  -0.0  # for region 3
  2.0604678609673943  1.9905137051938098  -0.0  -0.0  # for region 4
  1.3573588568735098  1.176377675957042  -0.0  -0.0  # for region 5