P    #regions in PPM
# 2023-11-02 12:04:01 +0100  nim51sx@woc2055
# low field   high field   mi   maxi
  11.091548844642649  10.668587134550847  0.345  0.671  # for region 1
  10.66070461089442  10.43269788734373  0.010  0.119  # for region 2
  9.902280036266879  9.578838728549618  0.058  0.259  # for region 3
  9.568886688312164  9.13597293798291  0.297  0.462  # for region 4
