P    #regions in PPM
# 2023-11-02 12:12:19 +0100  nim51sx@woc2055
# low field   high field   mi   maxi
  11.153271398195319  10.683032520955493  0.317  0.637  # for region 1
  9.860098866458332  9.75700356708677  0.027  0.234  # for region 2
  9.583740353900733  9.212974314418055  0.047  0.627  # for region 3
