A 1.0 #regions in PPM
# low field   high field  bias        slope
  8.412647250098292  8.30657762361951  -0.0  -0.0  # for region 1
  8.06129161238733  7.95522198590855  -0.0  -0.0  # for region 2
  7.84915235942977  7.736453381296065  -0.0  -0.0  # for region 3
  7.690047919711598  7.603866348197589  -0.0  -0.0  # for region 4
  7.179587842282467  7.113294325733229  -0.0  -0.0  # for region 5
  7.113294325733229  7.060259512493838  -0.0  -0.0  # for region 6
  7.060259512493838  6.94093118270521  -0.0  -0.0  # for region 7
  6.384065643691612  6.251478610593136  -0.0  -0.0  # for region 8
  5.3498867855235  5.223929104079948  -0.0  -0.0  # for region 9
  4.680322268376197  4.521217828658026  -0.0  -0.0  # for region 10
  4.176491542601989  4.0372751578485895  -0.0  -0.0  # for region 11
  3.4936683221448384  3.3610812890463624  -0.0  -0.0  # for region 12
  2.4064546507373366  2.2738676176388606  -0.0  -0.0  # for region 13