P    #regions in PPM
# 2024-07-14 08:19:47 -0400  suvee@LAPTOP-P57SIM1R
# low field   high field   mi   maxi
  9.45816404535707  7.016518435821956  0.271  1.701  # for region 1
  5.859949462884271  4.369260564431254  0.055  0.558  # for region 2
  4.369260564431254  4.369270564431254  0.055  0.100  # for region 3
  4.369260564431254  3.611065348838772  2.230  4.212  # for region 4
  3.456856152447081  3.2897961896894152  1.167  5.334  # for region 5
  2.685810170488624  2.171779515849653  3.733  6.789  # for region 6
  2.0561226185558845  0.8481505801543023  0.409  1.095  # for region 7
