A 1.0 #regions in PPM
# low field   high field  bias        slope
  3.9600274257385837  3.9171064211241893  -0.0  -0.0  # for region 1
  2.665620286578168  2.604627280020871  -0.0  -0.0  # for region 2
  2.536857272734985  2.491677267877728  -0.0  -0.0  # for region 3
  2.2251152392199116  2.173158233634066  -0.0  -0.0  # for region 4
  2.0692442224623746  2.019546217119392  -0.0  -0.0  # for region 5
  1.9337042078906033  1.8862652027904834  -0.0  -0.0  # for region 6
  1.8568981996332663  1.7868691921045177  -0.0  -0.0  # for region 7
  1.7755741908902034  1.7032861831185921  -0.0  -0.0  # for region 8
  1.6942501821471407  1.6264801748612552  -0.0  -0.0  # for region 9
  1.6264801748612552  1.5677461685468208  -0.0  -0.0  # for region 10
  1.4841631595608953  1.4502781559179525  -0.0  -0.0  # for region 11
  1.443501155189364  1.411875151789284  -0.0  -0.0  # for region 12
