P    #regions in PPM
# 2023-11-02 12:19:28 +0100  nim51sx@woc2055
# low field   high field   mi   maxi
  11.111452925117534  10.673563154669552  0.223  0.714  # for region 1
  9.5624178621578  9.25589502284421  0.262  0.661  # for region 2
  9.219590522162148  9.015547831000916  0.075  0.205  # for region 3
