A 1.0 #regions in PPM
# low field   high field  bias        slope
  5.7487399308446285  5.654579535425622  -0.0  -0.0  # for region 1
  3.6672996110560563  3.6078298876335255  -0.0  -0.0  # for region 2
  2.960955235109718  2.9219952978056427  -0.0  -0.0  # for region 3
  1.43595197492163  0.5955304702194357  -0.0  -0.0  # for region 4