A 1.0 #regions in PPM
# low field   high field  bias        slope
  12.55060898388777  12.019186801687116  0.0  0.0  # for region 1
  10.829140319205866  10.37121269411807  0.0  0.0  # for region 2
  7.633682044882279  7.482134188063855  0.0  0.0  # for region 3
  7.340467767661643  7.267472455586529  0.0  0.0  # for region 4
  7.245524540807187  7.192504297239115  0.0  0.0  # for region 5
  6.542737704027448  6.349477460353167  0.0  0.0  # for region 6
  3.6446255863589494  3.541471126981801  0.0  0.0  # for region 7
