P    #regions in PPM
# 2018-06-01 16:06:04 +0100  ceisam@P15q
# low field   high field   mi   maxi
  7.938080495356037  7.572755417956657  1.396  3.660  # for region 1
  7.442724458204334  7.145510835913313  0.717  2.642  # for region 2
  7.046439628482972  6.953560371517028  2.528  3.736  # for region 3
  2.8544891640866874  2.5944272445820435  14.830  16.000  # for region 4