P    #regions in PPM
# 2018-03-28 17:21:08 +0200  ceisam@P15q
# low field   high field   mi   maxi
  8.001237623762377  2.9269901980198023  0.417  1.050  # for region 1
  2.9269801980198022  2.24009900990099  12.364  16.056  # for region 2
  1.6027227722772277  1.4047029702970297  3.993  5.495  # for region 3