A 1.0 #regions in PPM
# low field   high field  bias        slope
  7.634210676427056  7.524293323321867  0.0  0.0  # for region 1
  7.345510646844125  7.2109727626589075  0.0  0.0  # for region 2
  2.3269569914276875  2.1483414101364833  0.0  0.0  # for region 3
  1.611820301898328  1.4902288189816966  0.0  0.0  # for region 4
  0.866605416768902  0.7511134439498021  0.0  0.0  # for region 5
