P    #regions in PPM
# 2018-05-02 13:59:40 +0100  ceisam@P15q
# low field   high field   mi   maxi
  7.891406223454773  7.146342919680903  0.990  5.205  # for region 1
  3.2088598934522916  2.958602189456879  1.973  6.173  # for region 2
  2.5859962746192644  2.319054723690824  6.325  8.096  # for region 3
  2.274564465202751  2.0409906081403655  14.395  15.635  # for region 4