A 1.0 #regions in PPM
# low field   high field  bias        slope
  4.762724388814661  4.674197913186136  -0.0  -0.0  # for region 1
  4.361404365965346  4.113530234205475  -0.0  -0.0  # for region 2
  4.023712476596996  3.960320654826397  -0.0  -0.0  # for region 3
  2.549562498101529  2.41382190213779  -0.0  -0.0  # for region 4
  2.2541748647073456  2.2101577971793245  -0.0  -0.0  # for region 5
  1.9711895239951633  1.864957753240933  -0.0  -0.0  # for region 6
  1.3869147848468963  1.2570759539250593  -0.0  -0.0  # for region 7