P    #regions in PPM
# 2020-03-17 18:25:20 +0100  Admin@HFD-002
# low field   high field   mi   maxi
  11.194342924511451  10.660240876506522  0.022  0.059  # for region 1
  8.83993389657136  8.502032600894772  1.955  2.146  # for region 2
  8.502032600894772  8.207731472402262  0.932  1.123  # for region 3
  8.066030929054016  7.924330385705769  0.516  0.702  # for region 4
